Finding the Third Proportional to 20,123,997 and 31,381,736

Step by Step Solution

1. Step 1: Write the proportion equation
   20,123,997 : 31,381,736 = 31,381,736 : x
2. Step 2: Convert to fraction form
   20,123,997/31,381,736 = 31,381,736/x
3. Step 3: Cross multiply
   20,123,997x = 31,381,736 × 31,381,736
4. Step 4: Simplify right side
   20,123,997x = 984,813,354,373,696
5. Step 5: Solve for x
   x = 984,813,354,373,696/20,123,997
6. Step 6: Final answer
   x = 48,937,264.02