Finding the Third Proportional to 197,288 and 300,856

Step by Step Solution

1. Step 1: Write the proportion equation
   197,288 : 300,856 = 300,856 : x
2. Step 2: Convert to fraction form
   197,288/300,856 = 300,856/x
3. Step 3: Cross multiply
   197,288x = 300,856 × 300,856
4. Step 4: Simplify right side
   197,288x = 90,514,332,736
5. Step 5: Solve for x
   x = 90,514,332,736/197,288
6. Step 6: Final answer
   x = 458,792.90