Finding the Third Proportional to 86.38 and 134.00

Step by Step Solution

1. Step 1: Write the proportion equation
   86.38 : 134.00 = 134.00 : x
2. Step 2: Convert to fraction form
   86.38/134.00 = 134.00/x
3. Step 3: Cross multiply
   86.38x = 134.00 × 134.00
4. Step 4: Simplify right side
   86.38x = 17,955.48
5. Step 5: Solve for x
   x = 17,955.48/86.38
6. Step 6: Final answer
   x = 207.87