Finding the Third Proportional to 111,939 and 168,986

Step by Step Solution

1. Step 1: Write the proportion equation
   111,939 : 168,986 = 168,986 : x
2. Step 2: Convert to fraction form
   111,939/168,986 = 168,986/x
3. Step 3: Cross multiply
   111,939x = 168,986 × 168,986
4. Step 4: Simplify right side
   111,939x = 28,556,268,196
5. Step 5: Solve for x
   x = 28,556,268,196/111,939
6. Step 6: Final answer
   x = 255,105.62