Finding the Third Proportional to 111,910.50 and 173,538.75

Step by Step Solution

1. Step 1: Write the proportion equation
   111,910.50 : 173,538.75 = 173,538.75 : x
2. Step 2: Convert to fraction form
   111,910.50/173,538.75 = 173,538.75/x
3. Step 3: Cross multiply
   111,910.50x = 173,538.75 × 173,538.75
4. Step 4: Simplify right side
   111,910.50x = 30,115,697,751.56
5. Step 5: Solve for x
   x = 30,115,697,751.56/111,910.50
6. Step 6: Final answer
   x = 269,105.20