Finding the Third Proportional to 227,940 and 489,110

Step by Step Solution

1. Step 1: Write the proportion equation
   227,940 : 489,110 = 489,110 : x
2. Step 2: Convert to fraction form
   227,940/489,110 = 489,110/x
3. Step 3: Cross multiply
   227,940x = 489,110 × 489,110
4. Step 4: Simplify right side
   227,940x = 239,228,592,100
5. Step 5: Solve for x
   x = 239,228,592,100/227,940
6. Step 6: Final answer
   x = 1,049,524.40