Finding the Third Proportional to 20,863,669.50 and 31,915,080

Step by Step Solution

1. Step 1: Write the proportion equation
   20,863,669.50 : 31,915,080 = 31,915,080 : x
2. Step 2: Convert to fraction form
   20,863,669.50/31,915,080 = 31,915,080/x
3. Step 3: Cross multiply
   20,863,669.50x = 31,915,080 × 31,915,080
4. Step 4: Simplify right side
   20,863,669.50x = 1,018,572,331,406,400
5. Step 5: Solve for x
   x = 1,018,572,331,406,400/20,863,669.50
6. Step 6: Final answer
   x = 48,820,382.79