Finding the Third Proportional to 2,542,840 and 5,388,944

Step by Step Solution

1. Step 1: Write the proportion equation
   2,542,840 : 5,388,944 = 5,388,944 : x
2. Step 2: Convert to fraction form
   2,542,840/5,388,944 = 5,388,944/x
3. Step 3: Cross multiply
   2,542,840x = 5,388,944 × 5,388,944
4. Step 4: Simplify right side
   2,542,840x = 29,040,717,435,136
5. Step 5: Solve for x
   x = 29,040,717,435,136/2,542,840
6. Step 6: Final answer
   x = 11,420,583.85