Finding the Third Proportional to 2,572,540 and 5,486,810

Step by Step Solution

1. Step 1: Write the proportion equation
   2,572,540 : 5,486,810 = 5,486,810 : x
2. Step 2: Convert to fraction form
   2,572,540/5,486,810 = 5,486,810/x
3. Step 3: Cross multiply
   2,572,540x = 5,486,810 × 5,486,810
4. Step 4: Simplify right side
   2,572,540x = 30,105,083,976,100
5. Step 5: Solve for x
   x = 30,105,083,976,100/2,572,540
6. Step 6: Final answer
   x = 11,702,474.59