Finding the Third Proportional to 225,934.50 and 489,061.50

Step by Step Solution

1. Step 1: Write the proportion equation
   225,934.50 : 489,061.50 = 489,061.50 : x
2. Step 2: Convert to fraction form
   225,934.50/489,061.50 = 489,061.50/x
3. Step 3: Cross multiply
   225,934.50x = 489,061.50 × 489,061.50
4. Step 4: Simplify right side
   225,934.50x = 239,181,150,782.25
5. Step 5: Solve for x
   x = 239,181,150,782.25/225,934.50
6. Step 6: Final answer
   x = 1,058,630.49