Finding the Third Proportional to 4,401.56 and 9,619.88

Step by Step Solution

1. Step 1: Write the proportion equation
   4,401.56 : 9,619.88 = 9,619.88 : x
2. Step 2: Convert to fraction form
   4,401.56/9,619.88 = 9,619.88/x
3. Step 3: Cross multiply
   4,401.56x = 9,619.88 × 9,619.88
4. Step 4: Simplify right side
   4,401.56x = 92,541,995.02
5. Step 5: Solve for x
   x = 92,541,995.02/4,401.56
6. Step 6: Final answer
   x = 21,024.81