Finding the Third Proportional to 3,454,287 and 5,418,081

Step by Step Solution

1. Step 1: Write the proportion equation
   3,454,287 : 5,418,081 = 5,418,081 : x
2. Step 2: Convert to fraction form
   3,454,287/5,418,081 = 5,418,081/x
3. Step 3: Cross multiply
   3,454,287x = 5,418,081 × 5,418,081
4. Step 4: Simplify right side
   3,454,287x = 29,355,601,722,561
5. Step 5: Solve for x
   x = 29,355,601,722,561/3,454,287
6. Step 6: Final answer
   x = 8,498,309.99