Finding the Third Proportional to 2,557,520 and 5,540,722

Step by Step Solution

1. Step 1: Write the proportion equation
   2,557,520 : 5,540,722 = 5,540,722 : x
2. Step 2: Convert to fraction form
   2,557,520/5,540,722 = 5,540,722/x
3. Step 3: Cross multiply
   2,557,520x = 5,540,722 × 5,540,722
4. Step 4: Simplify right side
   2,557,520x = 30,699,600,281,284
5. Step 5: Solve for x
   x = 30,699,600,281,284/2,557,520
6. Step 6: Final answer
   x = 12,003,659.91