Finding the Third Proportional to 111,867 and 170,716.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,867 : 170,716.50 = 170,716.50 : x
2. Step 2: Convert to fraction form
   111,867/170,716.50 = 170,716.50/x
3. Step 3: Cross multiply
   111,867x = 170,716.50 × 170,716.50
4. Step 4: Simplify right side
   111,867x = 29,144,123,372.25
5. Step 5: Solve for x
   x = 29,144,123,372.25/111,867
6. Step 6: Final answer
   x = 260,524.76