Finding the Third Proportional to 108,988 and 171,260

Step by Step Solution

1. Step 1: Write the proportion equation
   108,988 : 171,260 = 171,260 : x
2. Step 2: Convert to fraction form
   108,988/171,260 = 171,260/x
3. Step 3: Cross multiply
   108,988x = 171,260 × 171,260
4. Step 4: Simplify right side
   108,988x = 29,329,987,600
5. Step 5: Solve for x
   x = 29,329,987,600/108,988
6. Step 6: Final answer
   x = 269,112.08