Finding the Third Proportional to 472,918.50 and 714,280.50

Step by Step Solution

1. Step 1: Write the proportion equation
   472,918.50 : 714,280.50 = 714,280.50 : x
2. Step 2: Convert to fraction form
   472,918.50/714,280.50 = 714,280.50/x
3. Step 3: Cross multiply
   472,918.50x = 714,280.50 × 714,280.50
4. Step 4: Simplify right side
   472,918.50x = 510,196,632,680.25
5. Step 5: Solve for x
   x = 510,196,632,680.25/472,918.50
6. Step 6: Final answer
   x = 1,078,825.70