Finding the Third Proportional to 227,516 and 489,916

Step by Step Solution

1. Step 1: Write the proportion equation
   227,516 : 489,916 = 489,916 : x
2. Step 2: Convert to fraction form
   227,516/489,916 = 489,916/x
3. Step 3: Cross multiply
   227,516x = 489,916 × 489,916
4. Step 4: Simplify right side
   227,516x = 240,017,687,056
5. Step 5: Solve for x
   x = 240,017,687,056/227,516
6. Step 6: Final answer
   x = 1,054,948.61