Finding the Third Proportional to 1,316.81 and 3,040.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,316.81 : 3,040.78 = 3,040.78 : x
2. Step 2: Convert to fraction form
   1,316.81/3,040.78 = 3,040.78/x
3. Step 3: Cross multiply
   1,316.81x = 3,040.78 × 3,040.78
4. Step 4: Simplify right side
   1,316.81x = 9,246,350.61
5. Step 5: Solve for x
   x = 9,246,350.61/1,316.81
6. Step 6: Final answer
   x = 7,021.77