Finding the Third Proportional to 112,009.50 and 173,434.50

Step by Step Solution

1. Step 1: Write the proportion equation
   112,009.50 : 173,434.50 = 173,434.50 : x
2. Step 2: Convert to fraction form
   112,009.50/173,434.50 = 173,434.50/x
3. Step 3: Cross multiply
   112,009.50x = 173,434.50 × 173,434.50
4. Step 4: Simplify right side
   112,009.50x = 30,079,525,790.25
5. Step 5: Solve for x
   x = 30,079,525,790.25/112,009.50
6. Step 6: Final answer
   x = 268,544.42