Finding the Third Proportional to 576,240 and 1,257,456

Step by Step Solution

1. Step 1: Write the proportion equation
   576,240 : 1,257,456 = 1,257,456 : x
2. Step 2: Convert to fraction form
   576,240/1,257,456 = 1,257,456/x
3. Step 3: Cross multiply
   576,240x = 1,257,456 × 1,257,456
4. Step 4: Simplify right side
   576,240x = 1,581,195,591,936
5. Step 5: Solve for x
   x = 1,581,195,591,936/576,240
6. Step 6: Final answer
   x = 2,743,987.91