Finding the Third Proportional to 8,238.56 and 19,439.81

Step by Step Solution

1. Step 1: Write the proportion equation
   8,238.56 : 19,439.81 = 19,439.81 : x
2. Step 2: Convert to fraction form
   8,238.56/19,439.81 = 19,439.81/x
3. Step 3: Cross multiply
   8,238.56x = 19,439.81 × 19,439.81
4. Step 4: Simplify right side
   8,238.56x = 377,906,310.04
5. Step 5: Solve for x
   x = 377,906,310.04/8,238.56
6. Step 6: Final answer
   x = 45,870.42