Finding the Third Proportional to 3,647,126 and 8,442,446

Step by Step Solution

1. Step 1: Write the proportion equation
   3,647,126 : 8,442,446 = 8,442,446 : x
2. Step 2: Convert to fraction form
   3,647,126/8,442,446 = 8,442,446/x
3. Step 3: Cross multiply
   3,647,126x = 8,442,446 × 8,442,446
4. Step 4: Simplify right side
   3,647,126x = 71,274,894,462,916
5. Step 5: Solve for x
   x = 71,274,894,462,916/3,647,126
6. Step 6: Final answer
   x = 19,542,756.26