Finding the Third Proportional to 677,856 and 1,491,144

Step by Step Solution

1. Step 1: Write the proportion equation
   677,856 : 1,491,144 = 1,491,144 : x
2. Step 2: Convert to fraction form
   677,856/1,491,144 = 1,491,144/x
3. Step 3: Cross multiply
   677,856x = 1,491,144 × 1,491,144
4. Step 4: Simplify right side
   677,856x = 2,223,510,428,736
5. Step 5: Solve for x
   x = 2,223,510,428,736/677,856
6. Step 6: Final answer
   x = 3,280,210.59