Finding the Third Proportional to 80,209.50 and 91,873.50

Step by Step Solution

1. Step 1: Write the proportion equation
   80,209.50 : 91,873.50 = 91,873.50 : x
2. Step 2: Convert to fraction form
   80,209.50/91,873.50 = 91,873.50/x
3. Step 3: Cross multiply
   80,209.50x = 91,873.50 × 91,873.50
4. Step 4: Simplify right side
   80,209.50x = 8,440,740,002.25
5. Step 5: Solve for x
   x = 8,440,740,002.25/80,209.50
6. Step 6: Final answer
   x = 105,233.67