Finding the Third Proportional to 3,995,568 and 8,629,578

Step by Step Solution

1. Step 1: Write the proportion equation
   3,995,568 : 8,629,578 = 8,629,578 : x
2. Step 2: Convert to fraction form
   3,995,568/8,629,578 = 8,629,578/x
3. Step 3: Cross multiply
   3,995,568x = 8,629,578 × 8,629,578
4. Step 4: Simplify right side
   3,995,568x = 74,469,616,458,084
5. Step 5: Solve for x
   x = 74,469,616,458,084/3,995,568
6. Step 6: Final answer
   x = 18,638,055.08