Finding the Third Proportional to 20,123,968 and 31,381,695

Step by Step Solution

1. Step 1: Write the proportion equation
   20,123,968 : 31,381,695 = 31,381,695 : x
2. Step 2: Convert to fraction form
   20,123,968/31,381,695 = 31,381,695/x
3. Step 3: Cross multiply
   20,123,968x = 31,381,695 × 31,381,695
4. Step 4: Simplify right side
   20,123,968x = 984,810,781,073,025
5. Step 5: Solve for x
   x = 984,810,781,073,025/20,123,968
6. Step 6: Final answer
   x = 48,937,206.67