Finding the Third Proportional to 31,519,568 and 69,017,800

Step by Step Solution

1. Step 1: Write the proportion equation
   31,519,568 : 69,017,800 = 69,017,800 : x
2. Step 2: Convert to fraction form
   31,519,568/69,017,800 = 69,017,800/x
3. Step 3: Cross multiply
   31,519,568x = 69,017,800 × 69,017,800
4. Step 4: Simplify right side
   31,519,568x = 4,763,456,716,840,000
5. Step 5: Solve for x
   x = 4,763,456,716,840,000/31,519,568
6. Step 6: Final answer
   x = 151,126,967.12