Finding the Third Proportional to 4,871.81 and 10,440.56

Step by Step Solution

1. Step 1: Write the proportion equation
   4,871.81 : 10,440.56 = 10,440.56 : x
2. Step 2: Convert to fraction form
   4,871.81/10,440.56 = 10,440.56/x
3. Step 3: Cross multiply
   4,871.81x = 10,440.56 × 10,440.56
4. Step 4: Simplify right side
   4,871.81x = 109,005,345.32
5. Step 5: Solve for x
   x = 109,005,345.32/4,871.81
6. Step 6: Final answer
   x = 22,374.70