Finding the Third Proportional to 605,478 and 1,284,756

Step by Step Solution

1. Step 1: Write the proportion equation
   605,478 : 1,284,756 = 1,284,756 : x
2. Step 2: Convert to fraction form
   605,478/1,284,756 = 1,284,756/x
3. Step 3: Cross multiply
   605,478x = 1,284,756 × 1,284,756
4. Step 4: Simplify right side
   605,478x = 1,650,597,979,536
5. Step 5: Solve for x
   x = 1,650,597,979,536/605,478
6. Step 6: Final answer
   x = 2,726,107.27