Finding the Third Proportional to 9,822 and 20,472

Step by Step Solution

1. Step 1: Write the proportion equation
   9,822 : 20,472 = 20,472 : x
2. Step 2: Convert to fraction form
   9,822/20,472 = 20,472/x
3. Step 3: Cross multiply
   9,822x = 20,472 × 20,472
4. Step 4: Simplify right side
   9,822x = 419,102,784
5. Step 5: Solve for x
   x = 419,102,784/9,822
6. Step 6: Final answer
   x = 42,669.80