Finding the Third Proportional to 31,491,442 and 69,036,330

Step by Step Solution

1. Step 1: Write the proportion equation
   31,491,442 : 69,036,330 = 69,036,330 : x
2. Step 2: Convert to fraction form
   31,491,442/69,036,330 = 69,036,330/x
3. Step 3: Cross multiply
   31,491,442x = 69,036,330 × 69,036,330
4. Step 4: Simplify right side
   31,491,442x = 4,766,014,859,868,900
5. Step 5: Solve for x
   x = 4,766,014,859,868,900/31,491,442
6. Step 6: Final answer
   x = 151,343,176.34