Finding the Third Proportional to 3,639,565 and 5,708,909

Step by Step Solution

1. Step 1: Write the proportion equation
   3,639,565 : 5,708,909 = 5,708,909 : x
2. Step 2: Convert to fraction form
   3,639,565/5,708,909 = 5,708,909/x
3. Step 3: Cross multiply
   3,639,565x = 5,708,909 × 5,708,909
4. Step 4: Simplify right side
   3,639,565x = 32,591,641,970,281
5. Step 5: Solve for x
   x = 32,591,641,970,281/3,639,565
6. Step 6: Final answer
   x = 8,954,817.94