Finding the Third Proportional to 20,863,669 and 31,915,077

Step by Step Solution

1. Step 1: Write the proportion equation
   20,863,669 : 31,915,077 = 31,915,077 : x
2. Step 2: Convert to fraction form
   20,863,669/31,915,077 = 31,915,077/x
3. Step 3: Cross multiply
   20,863,669x = 31,915,077 × 31,915,077
4. Step 4: Simplify right side
   20,863,669x = 1,018,572,139,915,929
5. Step 5: Solve for x
   x = 1,018,572,139,915,929/20,863,669
6. Step 6: Final answer
   x = 48,820,374.78