Finding the Third Proportional to 111,561.75 and 169,959.94

Step by Step Solution

1. Step 1: Write the proportion equation
   111,561.75 : 169,959.94 = 169,959.94 : x
2. Step 2: Convert to fraction form
   111,561.75/169,959.94 = 169,959.94/x
3. Step 3: Cross multiply
   111,561.75x = 169,959.94 × 169,959.94
4. Step 4: Simplify right side
   111,561.75x = 28,886,380,355.00
5. Step 5: Solve for x
   x = 28,886,380,355.00/111,561.75
6. Step 6: Final answer
   x = 258,927.28