Finding the Third Proportional to 131.88 and 297.69

Step by Step Solution

1. Step 1: Write the proportion equation
   131.88 : 297.69 = 297.69 : x
2. Step 2: Convert to fraction form
   131.88/297.69 = 297.69/x
3. Step 3: Cross multiply
   131.88x = 297.69 × 297.69
4. Step 4: Simplify right side
   131.88x = 88,617.85
5. Step 5: Solve for x
   x = 88,617.85/131.88
6. Step 6: Final answer
   x = 671.98