Finding the Third Proportional to 40.17 and 86.67

Step by Step Solution

1. Step 1: Write the proportion equation
   40.17 : 86.67 = 86.67 : x
2. Step 2: Convert to fraction form
   40.17/86.67 = 86.67/x
3. Step 3: Cross multiply
   40.17x = 86.67 × 86.67
4. Step 4: Simplify right side
   40.17x = 7,512.01
5. Step 5: Solve for x
   x = 7,512.01/40.17
6. Step 6: Final answer
   x = 187.00