Finding the Third Proportional to 1,129.92 and 1,332.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,129.92 : 1,332.42 = 1,332.42 : x
2. Step 2: Convert to fraction form
   1,129.92/1,332.42 = 1,332.42/x
3. Step 3: Cross multiply
   1,129.92x = 1,332.42 × 1,332.42
4. Step 4: Simplify right side
   1,129.92x = 1,775,348.05
5. Step 5: Solve for x
   x = 1,775,348.05/1,129.92
6. Step 6: Final answer
   x = 1,571.21