Finding the Third Proportional to 131.06 and 309.94

Step by Step Solution

1. Step 1: Write the proportion equation
   131.06 : 309.94 = 309.94 : x
2. Step 2: Convert to fraction form
   131.06/309.94 = 309.94/x
3. Step 3: Cross multiply
   131.06x = 309.94 × 309.94
4. Step 4: Simplify right side
   131.06x = 96,061.25
5. Step 5: Solve for x
   x = 96,061.25/131.06
6. Step 6: Final answer
   x = 732.94