Finding the Third Proportional to 222,284 and 479,320

Step by Step Solution

1. Step 1: Write the proportion equation
   222,284 : 479,320 = 479,320 : x
2. Step 2: Convert to fraction form
   222,284/479,320 = 479,320/x
3. Step 3: Cross multiply
   222,284x = 479,320 × 479,320
4. Step 4: Simplify right side
   222,284x = 229,747,662,400
5. Step 5: Solve for x
   x = 229,747,662,400/222,284
6. Step 6: Final answer
   x = 1,033,577.15