Finding the Third Proportional to 144,632 and 222,455

Step by Step Solution

1. Step 1: Write the proportion equation
   144,632 : 222,455 = 222,455 : x
2. Step 2: Convert to fraction form
   144,632/222,455 = 222,455/x
3. Step 3: Cross multiply
   144,632x = 222,455 × 222,455
4. Step 4: Simplify right side
   144,632x = 49,486,227,025
5. Step 5: Solve for x
   x = 49,486,227,025/144,632
6. Step 6: Final answer
   x = 342,152.68