Finding the Third Proportional to 111,915 and 173,545.88

Step by Step Solution

1. Step 1: Write the proportion equation
   111,915 : 173,545.88 = 173,545.88 : x
2. Step 2: Convert to fraction form
   111,915/173,545.88 = 173,545.88/x
3. Step 3: Cross multiply
   111,915x = 173,545.88 × 173,545.88
4. Step 4: Simplify right side
   111,915x = 30,118,170,729.52
5. Step 5: Solve for x
   x = 30,118,170,729.52/111,915
6. Step 6: Final answer
   x = 269,116.48