Finding the Third Proportional to 228,214 and 333,870

Step by Step Solution

1. Step 1: Write the proportion equation
   228,214 : 333,870 = 333,870 : x
2. Step 2: Convert to fraction form
   228,214/333,870 = 333,870/x
3. Step 3: Cross multiply
   228,214x = 333,870 × 333,870
4. Step 4: Simplify right side
   228,214x = 111,469,176,900
5. Step 5: Solve for x
   x = 111,469,176,900/228,214
6. Step 6: Final answer
   x = 488,441.45