Finding the Third Proportional to 228,240 and 333,906

Step by Step Solution

1. Step 1: Write the proportion equation
   228,240 : 333,906 = 333,906 : x
2. Step 2: Convert to fraction form
   228,240/333,906 = 333,906/x
3. Step 3: Cross multiply
   228,240x = 333,906 × 333,906
4. Step 4: Simplify right side
   228,240x = 111,493,216,836
5. Step 5: Solve for x
   x = 111,493,216,836/228,240
6. Step 6: Final answer
   x = 488,491.14