Finding the Third Proportional to 31,516,753 and 69,012,218

Step by Step Solution

1. Step 1: Write the proportion equation
   31,516,753 : 69,012,218 = 69,012,218 : x
2. Step 2: Convert to fraction form
   31,516,753/69,012,218 = 69,012,218/x
3. Step 3: Cross multiply
   31,516,753x = 69,012,218 × 69,012,218
4. Step 4: Simplify right side
   31,516,753x = 4,762,686,233,279,524
5. Step 5: Solve for x
   x = 4,762,686,233,279,524/31,516,753
6. Step 6: Final answer
   x = 151,116,018.62