Finding the Third Proportional to 20,123,970 and 31,381,697

Step by Step Solution

1. Step 1: Write the proportion equation
   20,123,970 : 31,381,697 = 31,381,697 : x
2. Step 2: Convert to fraction form
   20,123,970/31,381,697 = 31,381,697/x
3. Step 3: Cross multiply
   20,123,970x = 31,381,697 × 31,381,697
4. Step 4: Simplify right side
   20,123,970x = 984,810,906,599,809
5. Step 5: Solve for x
   x = 984,810,906,599,809/20,123,970
6. Step 6: Final answer
   x = 48,937,208.05