Finding the Third Proportional to 3,491,329 and 5,418,545

Step by Step Solution

1. Step 1: Write the proportion equation
   3,491,329 : 5,418,545 = 5,418,545 : x
2. Step 2: Convert to fraction form
   3,491,329/5,418,545 = 5,418,545/x
3. Step 3: Cross multiply
   3,491,329x = 5,418,545 × 5,418,545
4. Step 4: Simplify right side
   3,491,329x = 29,360,629,917,025
5. Step 5: Solve for x
   x = 29,360,629,917,025/3,491,329
6. Step 6: Final answer
   x = 8,409,585.55