Finding the Third Proportional to 222,174 and 488,664

Step by Step Solution

1. Step 1: Write the proportion equation
   222,174 : 488,664 = 488,664 : x
2. Step 2: Convert to fraction form
   222,174/488,664 = 488,664/x
3. Step 3: Cross multiply
   222,174x = 488,664 × 488,664
4. Step 4: Simplify right side
   222,174x = 238,792,504,896
5. Step 5: Solve for x
   x = 238,792,504,896/222,174
6. Step 6: Final answer
   x = 1,074,799.50