Finding the Third Proportional to 3,542,598 and 5,639,715

Step by Step Solution

1. Step 1: Write the proportion equation
   3,542,598 : 5,639,715 = 5,639,715 : x
2. Step 2: Convert to fraction form
   3,542,598/5,639,715 = 5,639,715/x
3. Step 3: Cross multiply
   3,542,598x = 5,639,715 × 5,639,715
4. Step 4: Simplify right side
   3,542,598x = 31,806,385,281,225
5. Step 5: Solve for x
   x = 31,806,385,281,225/3,542,598
6. Step 6: Final answer
   x = 8,978,265.47