Finding the Third Proportional to 769.50 and 850.50

Step by Step Solution

1. Step 1: Write the proportion equation
   769.50 : 850.50 = 850.50 : x
2. Step 2: Convert to fraction form
   769.50/850.50 = 850.50/x
3. Step 3: Cross multiply
   769.50x = 850.50 × 850.50
4. Step 4: Simplify right side
   769.50x = 723,350.25
5. Step 5: Solve for x
   x = 723,350.25/769.50
6. Step 6: Final answer
   x = 940.03