Finding the Third Proportional to 228,972 and 336,832.50

Step by Step Solution

1. Step 1: Write the proportion equation
   228,972 : 336,832.50 = 336,832.50 : x
2. Step 2: Convert to fraction form
   228,972/336,832.50 = 336,832.50/x
3. Step 3: Cross multiply
   228,972x = 336,832.50 × 336,832.50
4. Step 4: Simplify right side
   228,972x = 113,456,133,056.25
5. Step 5: Solve for x
   x = 113,456,133,056.25/228,972
6. Step 6: Final answer
   x = 495,502.21