Finding the Third Proportional to 42,908.75 and 89,738.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,908.75 : 89,738.50 = 89,738.50 : x
2. Step 2: Convert to fraction form
   42,908.75/89,738.50 = 89,738.50/x
3. Step 3: Cross multiply
   42,908.75x = 89,738.50 × 89,738.50
4. Step 4: Simplify right side
   42,908.75x = 8,052,998,382.25
5. Step 5: Solve for x
   x = 8,052,998,382.25/42,908.75
6. Step 6: Final answer
   x = 187,677.30