Finding the Third Proportional to 31,531.50 and 65,733.75

Step by Step Solution

1. Step 1: Write the proportion equation
   31,531.50 : 65,733.75 = 65,733.75 : x
2. Step 2: Convert to fraction form
   31,531.50/65,733.75 = 65,733.75/x
3. Step 3: Cross multiply
   31,531.50x = 65,733.75 × 65,733.75
4. Step 4: Simplify right side
   31,531.50x = 4,320,925,889.06
5. Step 5: Solve for x
   x = 4,320,925,889.06/31,531.50
6. Step 6: Final answer
   x = 137,035.22