Finding the Third Proportional to 88.75 and 190.31

Step by Step Solution

1. Step 1: Write the proportion equation
   88.75 : 190.31 = 190.31 : x
2. Step 2: Convert to fraction form
   88.75/190.31 = 190.31/x
3. Step 3: Cross multiply
   88.75x = 190.31 × 190.31
4. Step 4: Simplify right side
   88.75x = 36,218.85
5. Step 5: Solve for x
   x = 36,218.85/88.75
6. Step 6: Final answer
   x = 408.10