Finding the Third Proportional to 598.69 and 804.38

Step by Step Solution

1. Step 1: Write the proportion equation
   598.69 : 804.38 = 804.38 : x
2. Step 2: Convert to fraction form
   598.69/804.38 = 804.38/x
3. Step 3: Cross multiply
   598.69x = 804.38 × 804.38
4. Step 4: Simplify right side
   598.69x = 647,019.14
5. Step 5: Solve for x
   x = 647,019.14/598.69
6. Step 6: Final answer
   x = 1,080.73