Finding the Third Proportional to 825.50 and 1,321.25

Step by Step Solution

1. Step 1: Write the proportion equation
   825.50 : 1,321.25 = 1,321.25 : x
2. Step 2: Convert to fraction form
   825.50/1,321.25 = 1,321.25/x
3. Step 3: Cross multiply
   825.50x = 1,321.25 × 1,321.25
4. Step 4: Simplify right side
   825.50x = 1,745,701.56
5. Step 5: Solve for x
   x = 1,745,701.56/825.50
6. Step 6: Final answer
   x = 2,114.72