Finding the Third Proportional to 3,090 and 5,988

Step by Step Solution

1. Step 1: Write the proportion equation
   3,090 : 5,988 = 5,988 : x
2. Step 2: Convert to fraction form
   3,090/5,988 = 5,988/x
3. Step 3: Cross multiply
   3,090x = 5,988 × 5,988
4. Step 4: Simplify right side
   3,090x = 35,856,144
5. Step 5: Solve for x
   x = 35,856,144/3,090
6. Step 6: Final answer
   x = 11,603.93