Finding the Third Proportional to 228,238 and 333,905

Step by Step Solution

1. Step 1: Write the proportion equation
   228,238 : 333,905 = 333,905 : x
2. Step 2: Convert to fraction form
   228,238/333,905 = 333,905/x
3. Step 3: Cross multiply
   228,238x = 333,905 × 333,905
4. Step 4: Simplify right side
   228,238x = 111,492,549,025
5. Step 5: Solve for x
   x = 111,492,549,025/228,238
6. Step 6: Final answer
   x = 488,492.49