Finding the Third Proportional to 8,471.25 and 19,788.75

Step by Step Solution

1. Step 1: Write the proportion equation
   8,471.25 : 19,788.75 = 19,788.75 : x
2. Step 2: Convert to fraction form
   8,471.25/19,788.75 = 19,788.75/x
3. Step 3: Cross multiply
   8,471.25x = 19,788.75 × 19,788.75
4. Step 4: Simplify right side
   8,471.25x = 391,594,626.56
5. Step 5: Solve for x
   x = 391,594,626.56/8,471.25
6. Step 6: Final answer
   x = 46,226.31