Finding the Third Proportional to 111,960 and 169,020

Step by Step Solution

1. Step 1: Write the proportion equation
   111,960 : 169,020 = 169,020 : x
2. Step 2: Convert to fraction form
   111,960/169,020 = 169,020/x
3. Step 3: Cross multiply
   111,960x = 169,020 × 169,020
4. Step 4: Simplify right side
   111,960x = 28,567,760,400
5. Step 5: Solve for x
   x = 28,567,760,400/111,960
6. Step 6: Final answer
   x = 255,160.42