Finding the Third Proportional to 229,376 and 489,856

Step by Step Solution

1. Step 1: Write the proportion equation
   229,376 : 489,856 = 489,856 : x
2. Step 2: Convert to fraction form
   229,376/489,856 = 489,856/x
3. Step 3: Cross multiply
   229,376x = 489,856 × 489,856
4. Step 4: Simplify right side
   229,376x = 239,958,900,736
5. Step 5: Solve for x
   x = 239,958,900,736/229,376
6. Step 6: Final answer
   x = 1,046,137.79