Finding the Third Proportional to 131.91 and 181.27

Step by Step Solution

1. Step 1: Write the proportion equation
   131.91 : 181.27 = 181.27 : x
2. Step 2: Convert to fraction form
   131.91/181.27 = 181.27/x
3. Step 3: Cross multiply
   131.91x = 181.27 × 181.27
4. Step 4: Simplify right side
   131.91x = 32,857.23
5. Step 5: Solve for x
   x = 32,857.23/131.91
6. Step 6: Final answer
   x = 249.10