Finding the Third Proportional to 139,810 and 222,383

Step by Step Solution

1. Step 1: Write the proportion equation
   139,810 : 222,383 = 222,383 : x
2. Step 2: Convert to fraction form
   139,810/222,383 = 222,383/x
3. Step 3: Cross multiply
   139,810x = 222,383 × 222,383
4. Step 4: Simplify right side
   139,810x = 49,454,198,689
5. Step 5: Solve for x
   x = 49,454,198,689/139,810
6. Step 6: Final answer
   x = 353,724.33