Answer: 108,913 people vote for other candidates
In this case, you know the total number of winning voters and the vote differences between two candidates. Then the Winning (W) and Losing(L) candidate equation would be :
W= 138,201
W-L = 29,288
If you put the first equation into the second, you will get
W-L = 29,288
138,201-L= 29,288
-L= 29,288 - 138,201
-L= -108,913
L= 108,913