Finding the Third Proportional to 131.06 and 275.34

Step by Step Solution

1. Step 1: Write the proportion equation
   131.06 : 275.34 = 275.34 : x
2. Step 2: Convert to fraction form
   131.06/275.34 = 275.34/x
3. Step 3: Cross multiply
   131.06x = 275.34 × 275.34
4. Step 4: Simplify right side
   131.06x = 75,814.18
5. Step 5: Solve for x
   x = 75,814.18/131.06
6. Step 6: Final answer
   x = 578.46