Finding the Third Proportional to 92.81 and 131.81

Step by Step Solution

1. Step 1: Write the proportion equation
   92.81 : 131.81 = 131.81 : x
2. Step 2: Convert to fraction form
   92.81/131.81 = 131.81/x
3. Step 3: Cross multiply
   92.81x = 131.81 × 131.81
4. Step 4: Simplify right side
   92.81x = 17,374.54
5. Step 5: Solve for x
   x = 17,374.54/92.81
6. Step 6: Final answer
   x = 187.20