Get Second highest value

I have following tables

Build table with Code Coverage

Mapping table - Work Item ID & Build ID

And Work Item table

Now, I have a measure that gives me the latest Build ID (from that second table of Build ID & Work Item ID)

And with that I am fetching relevant Build Repo & Code Coverage in that third table

Hence in the third table as shown above, I am getting the latest Code Coverage against the work item & repo.

Now, what I need is, to get the previous Code Coverage in that third table shown above.

For that I need a measure in this third table, to get the second highest 'build ID' from the build table (First Table), for that respective 'Build Repo' column value in the Third table.

How can I use Lookup to do that?