Finding the Third Proportional to 225,224 and 489,388

Step by Step Solution

1. Step 1: Write the proportion equation
   225,224 : 489,388 = 489,388 : x
2. Step 2: Convert to fraction form
   225,224/489,388 = 489,388/x
3. Step 3: Cross multiply
   225,224x = 489,388 × 489,388
4. Step 4: Simplify right side
   225,224x = 239,500,614,544
5. Step 5: Solve for x
   x = 239,500,614,544/225,224
6. Step 6: Final answer
   x = 1,063,388.51