Finding the Third Proportional to 222,288 and 479,328

Step by Step Solution

1. Step 1: Write the proportion equation
   222,288 : 479,328 = 479,328 : x
2. Step 2: Convert to fraction form
   222,288/479,328 = 479,328/x
3. Step 3: Cross multiply
   222,288x = 479,328 × 479,328
4. Step 4: Simplify right side
   222,288x = 229,755,331,584
5. Step 5: Solve for x
   x = 229,755,331,584/222,288
6. Step 6: Final answer
   x = 1,033,593.05