Finding the Third Proportional to 4,540.69 and 9,798.56

Step by Step Solution

1. Step 1: Write the proportion equation
   4,540.69 : 9,798.56 = 9,798.56 : x
2. Step 2: Convert to fraction form
   4,540.69/9,798.56 = 9,798.56/x
3. Step 3: Cross multiply
   4,540.69x = 9,798.56 × 9,798.56
4. Step 4: Simplify right side
   4,540.69x = 96,011,827.07
5. Step 5: Solve for x
   x = 96,011,827.07/4,540.69
6. Step 6: Final answer
   x = 21,144.78