Finding the Third Proportional to 959.75 and 1,429.50

Step by Step Solution

1. Step 1: Write the proportion equation
   959.75 : 1,429.50 = 1,429.50 : x
2. Step 2: Convert to fraction form
   959.75/1,429.50 = 1,429.50/x
3. Step 3: Cross multiply
   959.75x = 1,429.50 × 1,429.50
4. Step 4: Simplify right side
   959.75x = 2,043,470.25
5. Step 5: Solve for x
   x = 2,043,470.25/959.75
6. Step 6: Final answer
   x = 2,129.17