Finding the Third Proportional to 111,111.75 and 170,950.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,111.75 : 170,950.50 = 170,950.50 : x
2. Step 2: Convert to fraction form
   111,111.75/170,950.50 = 170,950.50/x
3. Step 3: Cross multiply
   111,111.75x = 170,950.50 × 170,950.50
4. Step 4: Simplify right side
   111,111.75x = 29,224,073,450.25
5. Step 5: Solve for x
   x = 29,224,073,450.25/111,111.75
6. Step 6: Final answer
   x = 263,015.15