Finding the Third Proportional to 111,268 and 170,789

Step by Step Solution

1. Step 1: Write the proportion equation
   111,268 : 170,789 = 170,789 : x
2. Step 2: Convert to fraction form
   111,268/170,789 = 170,789/x
3. Step 3: Cross multiply
   111,268x = 170,789 × 170,789
4. Step 4: Simplify right side
   111,268x = 29,168,882,521
5. Step 5: Solve for x
   x = 29,168,882,521/111,268
6. Step 6: Final answer
   x = 262,149.79