Finding the Third Proportional to 2,171.81 and 4,723.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,171.81 : 4,723.31 = 4,723.31 : x
2. Step 2: Convert to fraction form
   2,171.81/4,723.31 = 4,723.31/x
3. Step 3: Cross multiply
   2,171.81x = 4,723.31 × 4,723.31
4. Step 4: Simplify right side
   2,171.81x = 22,309,680.97
5. Step 5: Solve for x
   x = 22,309,680.97/2,171.81
6. Step 6: Final answer
   x = 10,272.38