Finding the Third Proportional to 404.37 and 863.79

Step by Step Solution

1. Step 1: Write the proportion equation
   404.37 : 863.79 = 863.79 : x
2. Step 2: Convert to fraction form
   404.37/863.79 = 863.79/x
3. Step 3: Cross multiply
   404.37x = 863.79 × 863.79
4. Step 4: Simplify right side
   404.37x = 746,131.54
5. Step 5: Solve for x
   x = 746,131.54/404.37
6. Step 6: Final answer
   x = 1,845.18