Finding the Third Proportional to 18,399,366 and 40,140,782

Step by Step Solution

1. Step 1: Write the proportion equation
   18,399,366 : 40,140,782 = 40,140,782 : x
2. Step 2: Convert to fraction form
   18,399,366/40,140,782 = 40,140,782/x
3. Step 3: Cross multiply
   18,399,366x = 40,140,782 × 40,140,782
4. Step 4: Simplify right side
   18,399,366x = 1,611,282,379,571,524
5. Step 5: Solve for x
   x = 1,611,282,379,571,524/18,399,366
6. Step 6: Final answer
   x = 87,572,711.99