Finding the Third Proportional to 59,755.50 and 91,111.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,755.50 : 91,111.50 = 91,111.50 : x
2. Step 2: Convert to fraction form
   59,755.50/91,111.50 = 91,111.50/x
3. Step 3: Cross multiply
   59,755.50x = 91,111.50 × 91,111.50
4. Step 4: Simplify right side
   59,755.50x = 8,301,305,432.25
5. Step 5: Solve for x
   x = 8,301,305,432.25/59,755.50
6. Step 6: Final answer
   x = 138,921.19