Finding the Third Proportional to 31.42 and 36.89

Step by Step Solution

1. Step 1: Write the proportion equation
   31.42 : 36.89 = 36.89 : x
2. Step 2: Convert to fraction form
   31.42/36.89 = 36.89/x
3. Step 3: Cross multiply
   31.42x = 36.89 × 36.89
4. Step 4: Simplify right side
   31.42x = 1,360.92
5. Step 5: Solve for x
   x = 1,360.92/31.42
6. Step 6: Final answer
   x = 43.31