Finding the Third Proportional to 31,872,494 and 69,690,526

Step by Step Solution

1. Step 1: Write the proportion equation
   31,872,494 : 69,690,526 = 69,690,526 : x
2. Step 2: Convert to fraction form
   31,872,494/69,690,526 = 69,690,526/x
3. Step 3: Cross multiply
   31,872,494x = 69,690,526 × 69,690,526
4. Step 4: Simplify right side
   31,872,494x = 4,856,769,414,156,676
5. Step 5: Solve for x
   x = 4,856,769,414,156,676/31,872,494
6. Step 6: Final answer
   x = 152,381,216.67