Finding the Third Proportional to 225,499.50 and 489,474

Step by Step Solution

1. Step 1: Write the proportion equation
   225,499.50 : 489,474 = 489,474 : x
2. Step 2: Convert to fraction form
   225,499.50/489,474 = 489,474/x
3. Step 3: Cross multiply
   225,499.50x = 489,474 × 489,474
4. Step 4: Simplify right side
   225,499.50x = 239,584,796,676
5. Step 5: Solve for x
   x = 239,584,796,676/225,499.50
6. Step 6: Final answer
   x = 1,062,462.65