Finding the Third Proportional to 4,040,388 and 8,977,632

Step by Step Solution

1. Step 1: Write the proportion equation
   4,040,388 : 8,977,632 = 8,977,632 : x
2. Step 2: Convert to fraction form
   4,040,388/8,977,632 = 8,977,632/x
3. Step 3: Cross multiply
   4,040,388x = 8,977,632 × 8,977,632
4. Step 4: Simplify right side
   4,040,388x = 80,597,876,327,424
5. Step 5: Solve for x
   x = 80,597,876,327,424/4,040,388
6. Step 6: Final answer
   x = 19,948,053.58