Finding the Third Proportional to 3,647,106 and 8,442,396

Step by Step Solution

1. Step 1: Write the proportion equation
   3,647,106 : 8,442,396 = 8,442,396 : x
2. Step 2: Convert to fraction form
   3,647,106/8,442,396 = 8,442,396/x
3. Step 3: Cross multiply
   3,647,106x = 8,442,396 × 8,442,396
4. Step 4: Simplify right side
   3,647,106x = 71,274,050,220,816
5. Step 5: Solve for x
   x = 71,274,050,220,816/3,647,106
6. Step 6: Final answer
   x = 19,542,631.94