Finding the Third Proportional to 9,558 and 20,208

Step by Step Solution

1. Step 1: Write the proportion equation
   9,558 : 20,208 = 20,208 : x
2. Step 2: Convert to fraction form
   9,558/20,208 = 20,208/x
3. Step 3: Cross multiply
   9,558x = 20,208 × 20,208
4. Step 4: Simplify right side
   9,558x = 408,363,264
5. Step 5: Solve for x
   x = 408,363,264/9,558
6. Step 6: Final answer
   x = 42,724.76