Finding the Third Proportional to 225,368 and 489,656

Step by Step Solution

1. Step 1: Write the proportion equation
   225,368 : 489,656 = 489,656 : x
2. Step 2: Convert to fraction form
   225,368/489,656 = 489,656/x
3. Step 3: Cross multiply
   225,368x = 489,656 × 489,656
4. Step 4: Simplify right side
   225,368x = 239,762,998,336
5. Step 5: Solve for x
   x = 239,762,998,336/225,368
6. Step 6: Final answer
   x = 1,063,873.30