Finding the Third Proportional to 31.50 and 35.91

Step by Step Solution

1. Step 1: Write the proportion equation
   31.50 : 35.91 = 35.91 : x
2. Step 2: Convert to fraction form
   31.50/35.91 = 35.91/x
3. Step 3: Cross multiply
   31.50x = 35.91 × 35.91
4. Step 4: Simplify right side
   31.50x = 1,289.26
5. Step 5: Solve for x
   x = 1,289.26/31.50
6. Step 6: Final answer
   x = 40.93