Finding the Third Proportional to 228,915 and 336,756.75

Step by Step Solution

1. Step 1: Write the proportion equation
   228,915 : 336,756.75 = 336,756.75 : x
2. Step 2: Convert to fraction form
   228,915/336,756.75 = 336,756.75/x
3. Step 3: Cross multiply
   228,915x = 336,756.75 × 336,756.75
4. Step 4: Simplify right side
   228,915x = 113,405,108,670.56
5. Step 5: Solve for x
   x = 113,405,108,670.56/228,915
6. Step 6: Final answer
   x = 495,402.70