Finding the Third Proportional to 131,660 and 188,142

Step by Step Solution

1. Step 1: Write the proportion equation
   131,660 : 188,142 = 188,142 : x
2. Step 2: Convert to fraction form
   131,660/188,142 = 188,142/x
3. Step 3: Cross multiply
   131,660x = 188,142 × 188,142
4. Step 4: Simplify right side
   131,660x = 35,397,412,164
5. Step 5: Solve for x
   x = 35,397,412,164/131,660
6. Step 6: Final answer
   x = 268,854.72