Finding the Third Proportional to 4,355.25 and 9,448.50

Step by Step Solution

1. Step 1: Write the proportion equation
   4,355.25 : 9,448.50 = 9,448.50 : x
2. Step 2: Convert to fraction form
   4,355.25/9,448.50 = 9,448.50/x
3. Step 3: Cross multiply
   4,355.25x = 9,448.50 × 9,448.50
4. Step 4: Simplify right side
   4,355.25x = 89,274,152.25
5. Step 5: Solve for x
   x = 89,274,152.25/4,355.25
6. Step 6: Final answer
   x = 20,498.05