Finding the Third Proportional to 831.94 and 1,822.50

Step by Step Solution

1. Step 1: Write the proportion equation
   831.94 : 1,822.50 = 1,822.50 : x
2. Step 2: Convert to fraction form
   831.94/1,822.50 = 1,822.50/x
3. Step 3: Cross multiply
   831.94x = 1,822.50 × 1,822.50
4. Step 4: Simplify right side
   831.94x = 3,321,506.25
5. Step 5: Solve for x
   x = 3,321,506.25/831.94
6. Step 6: Final answer
   x = 3,992.49