Finding the Third Proportional to 224,700 and 489,078

Step by Step Solution

1. Step 1: Write the proportion equation
   224,700 : 489,078 = 489,078 : x
2. Step 2: Convert to fraction form
   224,700/489,078 = 489,078/x
3. Step 3: Cross multiply
   224,700x = 489,078 × 489,078
4. Step 4: Simplify right side
   224,700x = 239,197,290,084
5. Step 5: Solve for x
   x = 239,197,290,084/224,700
6. Step 6: Final answer
   x = 1,064,518.42