Finding the Third Proportional to 131.31 and 192.31

Step by Step Solution

1. Step 1: Write the proportion equation
   131.31 : 192.31 = 192.31 : x
2. Step 2: Convert to fraction form
   131.31/192.31 = 192.31/x
3. Step 3: Cross multiply
   131.31x = 192.31 × 192.31
4. Step 4: Simplify right side
   131.31x = 36,984.10
5. Step 5: Solve for x
   x = 36,984.10/131.31
6. Step 6: Final answer
   x = 281.65