Finding the Third Proportional to 2,587,218 and 5,627,448

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587,218 : 5,627,448 = 5,627,448 : x
2. Step 2: Convert to fraction form
   2,587,218/5,627,448 = 5,627,448/x
3. Step 3: Cross multiply
   2,587,218x = 5,627,448 × 5,627,448
4. Step 4: Simplify right side
   2,587,218x = 31,668,170,992,704
5. Step 5: Solve for x
   x = 31,668,170,992,704/2,587,218
6. Step 6: Final answer
   x = 12,240,240.67