Finding the Third Proportional to 111,424 and 168,081

Step by Step Solution

1. Step 1: Write the proportion equation
   111,424 : 168,081 = 168,081 : x
2. Step 2: Convert to fraction form
   111,424/168,081 = 168,081/x
3. Step 3: Cross multiply
   111,424x = 168,081 × 168,081
4. Step 4: Simplify right side
   111,424x = 28,251,222,561
5. Step 5: Solve for x
   x = 28,251,222,561/111,424
6. Step 6: Final answer
   x = 253,547.01