Finding the Third Proportional to 3,542,628 and 5,639,762

Step by Step Solution

1. Step 1: Write the proportion equation
   3,542,628 : 5,639,762 = 5,639,762 : x
2. Step 2: Convert to fraction form
   3,542,628/5,639,762 = 5,639,762/x
3. Step 3: Cross multiply
   3,542,628x = 5,639,762 × 5,639,762
4. Step 4: Simplify right side
   3,542,628x = 31,806,915,416,644
5. Step 5: Solve for x
   x = 31,806,915,416,644/3,542,628
6. Step 6: Final answer
   x = 8,978,339.08