Finding the Third Proportional to 111,554 and 167,578

Step by Step Solution

1. Step 1: Write the proportion equation
   111,554 : 167,578 = 167,578 : x
2. Step 2: Convert to fraction form
   111,554/167,578 = 167,578/x
3. Step 3: Cross multiply
   111,554x = 167,578 × 167,578
4. Step 4: Simplify right side
   111,554x = 28,082,386,084
5. Step 5: Solve for x
   x = 28,082,386,084/111,554
6. Step 6: Final answer
   x = 251,738.05