Finding the Third Proportional to 3,542,608 and 5,639,722

Step by Step Solution

1. Step 1: Write the proportion equation
   3,542,608 : 5,639,722 = 5,639,722 : x
2. Step 2: Convert to fraction form
   3,542,608/5,639,722 = 5,639,722/x
3. Step 3: Cross multiply
   3,542,608x = 5,639,722 × 5,639,722
4. Step 4: Simplify right side
   3,542,608x = 31,806,464,237,284
5. Step 5: Solve for x
   x = 31,806,464,237,284/3,542,608
6. Step 6: Final answer
   x = 8,978,262.41