Word meaning "two paragraphs previous"

Solution 1:

A couple of things come to mind.

In the paragraph before the last one we said that XYZ ...

As mentioned before, XYZ ...

Above we established/concluded that XYZ...

The last two options do not specifically point to the paragraph, but the reader should be able to figure out which part of the text you are referring to.

Solution 2:

"As stated previously,"

I think that you can trust your readers to have enough of an attention span to figure out which paragraph is being referred to in that case. If not there are either some serious problems with your writing style or you're writing something that's altogether far too meta (but I repeat myself).