Finding the Third Proportional to 31,651.50 and 67,542

Step by Step Solution

1. Step 1: Write the proportion equation
   31,651.50 : 67,542 = 67,542 : x
2. Step 2: Convert to fraction form
   31,651.50/67,542 = 67,542/x
3. Step 3: Cross multiply
   31,651.50x = 67,542 × 67,542
4. Step 4: Simplify right side
   31,651.50x = 4,561,921,764
5. Step 5: Solve for x
   x = 4,561,921,764/31,651.50
6. Step 6: Final answer
   x = 144,129.72