Finding the Third Proportional to 80,919 and 89,383.50

Step by Step Solution

1. Step 1: Write the proportion equation
   80,919 : 89,383.50 = 89,383.50 : x
2. Step 2: Convert to fraction form
   80,919/89,383.50 = 89,383.50/x
3. Step 3: Cross multiply
   80,919x = 89,383.50 × 89,383.50
4. Step 4: Simplify right side
   80,919x = 7,989,410,072.25
5. Step 5: Solve for x
   x = 7,989,410,072.25/80,919
6. Step 6: Final answer
   x = 98,733.43