Finding the Third Proportional to 115.45 and 160.38

Step by Step Solution

1. Step 1: Write the proportion equation
   115.45 : 160.38 = 160.38 : x
2. Step 2: Convert to fraction form
   115.45/160.38 = 160.38/x
3. Step 3: Cross multiply
   115.45x = 160.38 × 160.38
4. Step 4: Simplify right side
   115.45x = 25,722.65
5. Step 5: Solve for x
   x = 25,722.65/115.45
6. Step 6: Final answer
   x = 222.80