Finding the Third Proportional to 550.69 and 1,332.56

Step by Step Solution

1. Step 1: Write the proportion equation
   550.69 : 1,332.56 = 1,332.56 : x
2. Step 2: Convert to fraction form
   550.69/1,332.56 = 1,332.56/x
3. Step 3: Cross multiply
   550.69x = 1,332.56 × 1,332.56
4. Step 4: Simplify right side
   550.69x = 1,775,722.82
5. Step 5: Solve for x
   x = 1,775,722.82/550.69
6. Step 6: Final answer
   x = 3,224.56