Finding the Third Proportional to 111,663 and 170,104.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,663 : 170,104.50 = 170,104.50 : x
2. Step 2: Convert to fraction form
   111,663/170,104.50 = 170,104.50/x
3. Step 3: Cross multiply
   111,663x = 170,104.50 × 170,104.50
4. Step 4: Simplify right side
   111,663x = 28,935,540,920.25
5. Step 5: Solve for x
   x = 28,935,540,920.25/111,663
6. Step 6: Final answer
   x = 259,132.76