Finding the Third Proportional to 9,822 and 20,859

Step by Step Solution

1. Step 1: Write the proportion equation
   9,822 : 20,859 = 20,859 : x
2. Step 2: Convert to fraction form
   9,822/20,859 = 20,859/x
3. Step 3: Cross multiply
   9,822x = 20,859 × 20,859
4. Step 4: Simplify right side
   9,822x = 435,097,881
5. Step 5: Solve for x
   x = 435,097,881/9,822
6. Step 6: Final answer
   x = 44,298.30