How do I report the sale of rental property that I had 1/3 partial interest in? The 1099-S shows the entire gross proceeds, not my portion of proceeds.

There are 3 interested parties, I am one and my two siblings are the others.  Each of us received a 1099-S showing the same gross proceeds, not our 1/3 portion as paid at closing.  Do I simply use 33.333% of all values on all basis and home sale worksheets?