Finding the Third Proportional to 3,315,080 and 4,679,218

Step by Step Solution

1. Step 1: Write the proportion equation
   3,315,080 : 4,679,218 = 4,679,218 : x
2. Step 2: Convert to fraction form
   3,315,080/4,679,218 = 4,679,218/x
3. Step 3: Cross multiply
   3,315,080x = 4,679,218 × 4,679,218
4. Step 4: Simplify right side
   3,315,080x = 21,895,081,091,524
5. Step 5: Solve for x
   x = 21,895,081,091,524/3,315,080
6. Step 6: Final answer
   x = 6,604,691.62