Finding the Third Proportional to 139,554 and 222,795

Step by Step Solution

1. Step 1: Write the proportion equation
   139,554 : 222,795 = 222,795 : x
2. Step 2: Convert to fraction form
   139,554/222,795 = 222,795/x
3. Step 3: Cross multiply
   139,554x = 222,795 × 222,795
4. Step 4: Simplify right side
   139,554x = 49,637,612,025
5. Step 5: Solve for x
   x = 49,637,612,025/139,554
6. Step 6: Final answer
   x = 355,687.49