Finding the Third Proportional to 85.88 and 126.50

Step by Step Solution

1. Step 1: Write the proportion equation
   85.88 : 126.50 = 126.50 : x
2. Step 2: Convert to fraction form
   85.88/126.50 = 126.50/x
3. Step 3: Cross multiply
   85.88x = 126.50 × 126.50
4. Step 4: Simplify right side
   85.88x = 16,002.25
5. Step 5: Solve for x
   x = 16,002.25/85.88
6. Step 6: Final answer
   x = 186.34