Finding the Third Proportional to 3,728,828 and 5,643,656

Step by Step Solution

1. Step 1: Write the proportion equation
   3,728,828 : 5,643,656 = 5,643,656 : x
2. Step 2: Convert to fraction form
   3,728,828/5,643,656 = 5,643,656/x
3. Step 3: Cross multiply
   3,728,828x = 5,643,656 × 5,643,656
4. Step 4: Simplify right side
   3,728,828x = 31,850,853,046,336
5. Step 5: Solve for x
   x = 31,850,853,046,336/3,728,828
6. Step 6: Final answer
   x = 8,541,786.60