Finding the Third Proportional to 3,991.50 and 9,016.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,991.50 : 9,016.88 = 9,016.88 : x
2. Step 2: Convert to fraction form
   3,991.50/9,016.88 = 9,016.88/x
3. Step 3: Cross multiply
   3,991.50x = 9,016.88 × 9,016.88
4. Step 4: Simplify right side
   3,991.50x = 81,304,034.77
5. Step 5: Solve for x
   x = 81,304,034.77/3,991.50
6. Step 6: Final answer
   x = 20,369.29