Finding the Third Proportional to 225,921.50 and 489,036

Step by Step Solution

1. Step 1: Write the proportion equation
   225,921.50 : 489,036 = 489,036 : x
2. Step 2: Convert to fraction form
   225,921.50/489,036 = 489,036/x
3. Step 3: Cross multiply
   225,921.50x = 489,036 × 489,036
4. Step 4: Simplify right side
   225,921.50x = 239,156,209,296
5. Step 5: Solve for x
   x = 239,156,209,296/225,921.50
6. Step 6: Final answer
   x = 1,058,581.01