Finding the Third Proportional to 72,555 and 112,111.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,555 : 112,111.50 = 112,111.50 : x
2. Step 2: Convert to fraction form
   72,555/112,111.50 = 112,111.50/x
3. Step 3: Cross multiply
   72,555x = 112,111.50 × 112,111.50
4. Step 4: Simplify right side
   72,555x = 12,568,988,432.25
5. Step 5: Solve for x
   x = 12,568,988,432.25/72,555
6. Step 6: Final answer
   x = 173,233.94