Finding the Third Proportional to 9,318,518 and 19,932,468

Step by Step Solution

1. Step 1: Write the proportion equation
   9,318,518 : 19,932,468 = 19,932,468 : x
2. Step 2: Convert to fraction form
   9,318,518/19,932,468 = 19,932,468/x
3. Step 3: Cross multiply
   9,318,518x = 19,932,468 × 19,932,468
4. Step 4: Simplify right side
   9,318,518x = 397,303,280,571,024
5. Step 5: Solve for x
   x = 397,303,280,571,024/9,318,518
6. Step 6: Final answer
   x = 42,635,887.01