Finding the Third Proportional to 660.23 and 1,423.83

Step by Step Solution

1. Step 1: Write the proportion equation
   660.23 : 1,423.83 = 1,423.83 : x
2. Step 2: Convert to fraction form
   660.23/1,423.83 = 1,423.83/x
3. Step 3: Cross multiply
   660.23x = 1,423.83 × 1,423.83
4. Step 4: Simplify right side
   660.23x = 2,027,286.53
5. Step 5: Solve for x
   x = 2,027,286.53/660.23
6. Step 6: Final answer
   x = 3,070.56