Finding the Third Proportional to 3,313.41 and 8,488.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,313.41 : 8,488.55 = 8,488.55 : x
2. Step 2: Convert to fraction form
   3,313.41/8,488.55 = 8,488.55/x
3. Step 3: Cross multiply
   3,313.41x = 8,488.55 × 8,488.55
4. Step 4: Simplify right side
   3,313.41x = 72,055,428.05
5. Step 5: Solve for x
   x = 72,055,428.05/3,313.41
6. Step 6: Final answer
   x = 21,746.63