Finding the Third Proportional to 2,548,478 and 5,474,728

Step by Step Solution

1. Step 1: Write the proportion equation
   2,548,478 : 5,474,728 = 5,474,728 : x
2. Step 2: Convert to fraction form
   2,548,478/5,474,728 = 5,474,728/x
3. Step 3: Cross multiply
   2,548,478x = 5,474,728 × 5,474,728
4. Step 4: Simplify right side
   2,548,478x = 29,972,646,673,984
5. Step 5: Solve for x
   x = 29,972,646,673,984/2,548,478
6. Step 6: Final answer
   x = 11,760,998.79