Finding the Third Proportional to 111,623 and 170,055

Step by Step Solution

1. Step 1: Write the proportion equation
   111,623 : 170,055 = 170,055 : x
2. Step 2: Convert to fraction form
   111,623/170,055 = 170,055/x
3. Step 3: Cross multiply
   111,623x = 170,055 × 170,055
4. Step 4: Simplify right side
   111,623x = 28,918,703,025
5. Step 5: Solve for x
   x = 28,918,703,025/111,623
6. Step 6: Final answer
   x = 259,074.77