Finding the Third Proportional to 155.43 and 175.61

Step by Step Solution

1. Step 1: Write the proportion equation
   155.43 : 175.61 = 175.61 : x
2. Step 2: Convert to fraction form
   155.43/175.61 = 175.61/x
3. Step 3: Cross multiply
   155.43x = 175.61 × 175.61
4. Step 4: Simplify right side
   155.43x = 30,837.28
5. Step 5: Solve for x
   x = 30,837.28/155.43
6. Step 6: Final answer
   x = 198.39