Finding the Third Proportional to 111,901.50 and 173,274.19

Step by Step Solution

1. Step 1: Write the proportion equation
   111,901.50 : 173,274.19 = 173,274.19 : x
2. Step 2: Convert to fraction form
   111,901.50/173,274.19 = 173,274.19/x
3. Step 3: Cross multiply
   111,901.50x = 173,274.19 × 173,274.19
4. Step 4: Simplify right side
   111,901.50x = 30,023,944,053.79
5. Step 5: Solve for x
   x = 30,023,944,053.79/111,901.50
6. Step 6: Final answer
   x = 268,306.90