Finding the Third Proportional to 2,540,545 and 5,449,478

Step by Step Solution

1. Step 1: Write the proportion equation
   2,540,545 : 5,449,478 = 5,449,478 : x
2. Step 2: Convert to fraction form
   2,540,545/5,449,478 = 5,449,478/x
3. Step 3: Cross multiply
   2,540,545x = 5,449,478 × 5,449,478
4. Step 4: Simplify right side
   2,540,545x = 29,696,810,472,484
5. Step 5: Solve for x
   x = 29,696,810,472,484/2,540,545
6. Step 6: Final answer
   x = 11,689,149.56