Finding the Third Proportional to 228,478 and 495,086

Step by Step Solution

1. Step 1: Write the proportion equation
   228,478 : 495,086 = 495,086 : x
2. Step 2: Convert to fraction form
   228,478/495,086 = 495,086/x
3. Step 3: Cross multiply
   228,478x = 495,086 × 495,086
4. Step 4: Simplify right side
   228,478x = 245,110,147,396
5. Step 5: Solve for x
   x = 245,110,147,396/228,478
6. Step 6: Final answer
   x = 1,072,795.40