Finding the Third Proportional to 131.06 and 234.84

Step by Step Solution

1. Step 1: Write the proportion equation
   131.06 : 234.84 = 234.84 : x
2. Step 2: Convert to fraction form
   131.06/234.84 = 234.84/x
3. Step 3: Cross multiply
   131.06x = 234.84 × 234.84
4. Step 4: Simplify right side
   131.06x = 55,151.59
5. Step 5: Solve for x
   x = 55,151.59/131.06
6. Step 6: Final answer
   x = 420.80