Finding the Third Proportional to 111,920 and 168,958

Step by Step Solution

1. Step 1: Write the proportion equation
   111,920 : 168,958 = 168,958 : x
2. Step 2: Convert to fraction form
   111,920/168,958 = 168,958/x
3. Step 3: Cross multiply
   111,920x = 168,958 × 168,958
4. Step 4: Simplify right side
   111,920x = 28,546,805,764
5. Step 5: Solve for x
   x = 28,546,805,764/111,920
6. Step 6: Final answer
   x = 255,064.38