Finding the Third Proportional to 4,877.81 and 10,363.31

Step by Step Solution

1. Step 1: Write the proportion equation
   4,877.81 : 10,363.31 = 10,363.31 : x
2. Step 2: Convert to fraction form
   4,877.81/10,363.31 = 10,363.31/x
3. Step 3: Cross multiply
   4,877.81x = 10,363.31 × 10,363.31
4. Step 4: Simplify right side
   4,877.81x = 107,398,245.97
5. Step 5: Solve for x
   x = 107,398,245.97/4,877.81
6. Step 6: Final answer
   x = 22,017.71