Finding the Third Proportional to 715.69 and 1,048.69

Step by Step Solution

1. Step 1: Write the proportion equation
   715.69 : 1,048.69 = 1,048.69 : x
2. Step 2: Convert to fraction form
   715.69/1,048.69 = 1,048.69/x
3. Step 3: Cross multiply
   715.69x = 1,048.69 × 1,048.69
4. Step 4: Simplify right side
   715.69x = 1,099,745.47
5. Step 5: Solve for x
   x = 1,099,745.47/715.69
6. Step 6: Final answer
   x = 1,536.63