Finding the Third Proportional to 228,958.50 and 336,816

Step by Step Solution

1. Step 1: Write the proportion equation
   228,958.50 : 336,816 = 336,816 : x
2. Step 2: Convert to fraction form
   228,958.50/336,816 = 336,816/x
3. Step 3: Cross multiply
   228,958.50x = 336,816 × 336,816
4. Step 4: Simplify right side
   228,958.50x = 113,445,017,856
5. Step 5: Solve for x
   x = 113,445,017,856/228,958.50
6. Step 6: Final answer
   x = 495,482.88