Finding the Third Proportional to 774.56 and 1,083.38

Step by Step Solution

1. Step 1: Write the proportion equation
   774.56 : 1,083.38 = 1,083.38 : x
2. Step 2: Convert to fraction form
   774.56/1,083.38 = 1,083.38/x
3. Step 3: Cross multiply
   774.56x = 1,083.38 × 1,083.38
4. Step 4: Simplify right side
   774.56x = 1,173,701.39
5. Step 5: Solve for x
   x = 1,173,701.39/774.56
6. Step 6: Final answer
   x = 1,515.31