Finding the Third Proportional to 144,522 and 222,418

Step by Step Solution

1. Step 1: Write the proportion equation
   144,522 : 222,418 = 222,418 : x
2. Step 2: Convert to fraction form
   144,522/222,418 = 222,418/x
3. Step 3: Cross multiply
   144,522x = 222,418 × 222,418
4. Step 4: Simplify right side
   144,522x = 49,469,766,724
5. Step 5: Solve for x
   x = 49,469,766,724/144,522
6. Step 6: Final answer
   x = 342,299.21