How to create a multi page, dual column layout with line numbers?

I think I already know the answer to this (it’s not possible), but I figured it’s worth asking before giving up.

Here is the situation, I have two sections of text: one in langA and the translation in langB. This is part of a larger document. What I am trying to do is have langA line up with landB in two columns. But, because the translation is a reference in the larger document, I need to be able to cite it by line number, where line number N matches up with the Nth line in the langA column. So I want something like this:

1    dsfsdfsdf | afdfsfsddfds
     dfsdfsdff | afdfsfsddfds
     dfsdfsdff | afdfsfsddfds
     dfsdfsdff | afdfsfsddfds
5    dfsdfsdff | afdfsfsddfds
     dfsdfsdff | afdfsfsddfds
     dfsdfsdff | afdfsfsddfds
     dfsdfsdff | afdfsfsddfds
     dfsdfsdff | afdfsfsddfds
10   dfsdfsdff | afdfsfsddfds

That last bit of line numbering is where I am stuck. Currently I have a table with everything lined up, however there is no way to get the line number with the table (that I have found). I could use numbered lists, but to be honest it looks bad and I want a more professional look. Is there anyway to accomplish what I am trying to do? Or should I look to some other program to accomplish my task.

With a table, inserting a column left, use a formula to get the numeration.
On cell A1 insert 1, on cell A5 insert 5, on cell A10 insert a formula [F2] =+5, and so on.
Copying ranges of cells make it easier to copy down.

How is that different from manually adding numbers in a column next to the lines? Anyway, I just manually included numbers in a column to the left and am fairly happy with the result. Luckily I can break the text down to larger sections and number that. Otherwise, for larger items, having to manually copy wouldn’t really be feasible.