Finding the Third Proportional to 4,680.28 and 10,089.56

Step by Step Solution

1. Step 1: Write the proportion equation
   4,680.28 : 10,089.56 = 10,089.56 : x
2. Step 2: Convert to fraction form
   4,680.28/10,089.56 = 10,089.56/x
3. Step 3: Cross multiply
   4,680.28x = 10,089.56 × 10,089.56
4. Step 4: Simplify right side
   4,680.28x = 101,799,271.44
5. Step 5: Solve for x
   x = 101,799,271.44/4,680.28
6. Step 6: Final answer
   x = 21,750.67