Finding the Third Proportional to 20,863,670 and 31,915,078

Step by Step Solution

1. Step 1: Write the proportion equation
   20,863,670 : 31,915,078 = 31,915,078 : x
2. Step 2: Convert to fraction form
   20,863,670/31,915,078 = 31,915,078/x
3. Step 3: Cross multiply
   20,863,670x = 31,915,078 × 31,915,078
4. Step 4: Simplify right side
   20,863,670x = 1,018,572,203,746,084
5. Step 5: Solve for x
   x = 1,018,572,203,746,084/20,863,670
6. Step 6: Final answer
   x = 48,820,375.50