Finding the Third Proportional to 31,935.50 and 65,920.75

Step by Step Solution

1. Step 1: Write the proportion equation
   31,935.50 : 65,920.75 = 65,920.75 : x
2. Step 2: Convert to fraction form
   31,935.50/65,920.75 = 65,920.75/x
3. Step 3: Cross multiply
   31,935.50x = 65,920.75 × 65,920.75
4. Step 4: Simplify right side
   31,935.50x = 4,345,545,280.56
5. Step 5: Solve for x
   x = 4,345,545,280.56/31,935.50
6. Step 6: Final answer
   x = 136,072.56