Finding the Third Proportional to 72,403.50 and 112,108.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,403.50 : 112,108.50 = 112,108.50 : x
2. Step 2: Convert to fraction form
   72,403.50/112,108.50 = 112,108.50/x
3. Step 3: Cross multiply
   72,403.50x = 112,108.50 × 112,108.50
4. Step 4: Simplify right side
   72,403.50x = 12,568,315,772.25
5. Step 5: Solve for x
   x = 12,568,315,772.25/72,403.50
6. Step 6: Final answer
   x = 173,587.13