Finding the Third Proportional to 2,557,518 and 5,540,718

Step by Step Solution

1. Step 1: Write the proportion equation
   2,557,518 : 5,540,718 = 5,540,718 : x
2. Step 2: Convert to fraction form
   2,557,518/5,540,718 = 5,540,718/x
3. Step 3: Cross multiply
   2,557,518x = 5,540,718 × 5,540,718
4. Step 4: Simplify right side
   2,557,518x = 30,699,555,955,524
5. Step 5: Solve for x
   x = 30,699,555,955,524/2,557,518
6. Step 6: Final answer
   x = 12,003,651.96