Finding the Third Proportional to 774.38 and 1,050.56

Step by Step Solution

1. Step 1: Write the proportion equation
   774.38 : 1,050.56 = 1,050.56 : x
2. Step 2: Convert to fraction form
   774.38/1,050.56 = 1,050.56/x
3. Step 3: Cross multiply
   774.38x = 1,050.56 × 1,050.56
4. Step 4: Simplify right side
   774.38x = 1,103,681.57
5. Step 5: Solve for x
   x = 1,103,681.57/774.38
6. Step 6: Final answer
   x = 1,425.25