Finding the Third Proportional to 9,784 and 20,647

Step by Step Solution

1. Step 1: Write the proportion equation
   9,784 : 20,647 = 20,647 : x
2. Step 2: Convert to fraction form
   9,784/20,647 = 20,647/x
3. Step 3: Cross multiply
   9,784x = 20,647 × 20,647
4. Step 4: Simplify right side
   9,784x = 426,298,609
5. Step 5: Solve for x
   x = 426,298,609/9,784
6. Step 6: Final answer
   x = 43,570.99