Finding the Third Proportional to 86.69 and 132.13

Step by Step Solution

1. Step 1: Write the proportion equation
   86.69 : 132.13 = 132.13 : x
2. Step 2: Convert to fraction form
   86.69/132.13 = 132.13/x
3. Step 3: Cross multiply
   86.69x = 132.13 × 132.13
4. Step 4: Simplify right side
   86.69x = 17,457.02
5. Step 5: Solve for x
   x = 17,457.02/86.69
6. Step 6: Final answer
   x = 201.38