Finding the Third Proportional to 3,647,132 and 8,442,461

Step by Step Solution

1. Step 1: Write the proportion equation
   3,647,132 : 8,442,461 = 8,442,461 : x
2. Step 2: Convert to fraction form
   3,647,132/8,442,461 = 8,442,461/x
3. Step 3: Cross multiply
   3,647,132x = 8,442,461 × 8,442,461
4. Step 4: Simplify right side
   3,647,132x = 71,275,147,736,521
5. Step 5: Solve for x
   x = 71,275,147,736,521/3,647,132
6. Step 6: Final answer
   x = 19,542,793.55