Finding the Third Proportional to 4,376.25 and 9,443.81

Step by Step Solution

1. Step 1: Write the proportion equation
   4,376.25 : 9,443.81 = 9,443.81 : x
2. Step 2: Convert to fraction form
   4,376.25/9,443.81 = 9,443.81/x
3. Step 3: Cross multiply
   4,376.25x = 9,443.81 × 9,443.81
4. Step 4: Simplify right side
   4,376.25x = 89,185,594.54
5. Step 5: Solve for x
   x = 89,185,594.54/4,376.25
6. Step 6: Final answer
   x = 20,379.46