Finding the Third Proportional to 85,039.88 and 126,734.63

Step by Step Solution

1. Step 1: Write the proportion equation
   85,039.88 : 126,734.63 = 126,734.63 : x
2. Step 2: Convert to fraction form
   85,039.88/126,734.63 = 126,734.63/x
3. Step 3: Cross multiply
   85,039.88x = 126,734.63 × 126,734.63
4. Step 4: Simplify right side
   85,039.88x = 16,061,665,173.89
5. Step 5: Solve for x
   x = 16,061,665,173.89/85,039.88
6. Step 6: Final answer
   x = 188,872.16