Finding the Third Proportional to 3,542,610 and 5,639,725

Step by Step Solution

1. Step 1: Write the proportion equation
   3,542,610 : 5,639,725 = 5,639,725 : x
2. Step 2: Convert to fraction form
   3,542,610/5,639,725 = 5,639,725/x
3. Step 3: Cross multiply
   3,542,610x = 5,639,725 × 5,639,725
4. Step 4: Simplify right side
   3,542,610x = 31,806,498,075,625
5. Step 5: Solve for x
   x = 31,806,498,075,625/3,542,610
6. Step 6: Final answer
   x = 8,978,266.89