Finding the Third Proportional to 139,804 and 222,372

Step by Step Solution

1. Step 1: Write the proportion equation
   139,804 : 222,372 = 222,372 : x
2. Step 2: Convert to fraction form
   139,804/222,372 = 222,372/x
3. Step 3: Cross multiply
   139,804x = 222,372 × 222,372
4. Step 4: Simplify right side
   139,804x = 49,449,306,384
5. Step 5: Solve for x
   x = 49,449,306,384/139,804
6. Step 6: Final answer
   x = 353,704.52