Finding the Third Proportional to 9,679 and 21,182

Step by Step Solution

1. Step 1: Write the proportion equation
   9,679 : 21,182 = 21,182 : x
2. Step 2: Convert to fraction form
   9,679/21,182 = 21,182/x
3. Step 3: Cross multiply
   9,679x = 21,182 × 21,182
4. Step 4: Simplify right side
   9,679x = 448,677,124
5. Step 5: Solve for x
   x = 448,677,124/9,679
6. Step 6: Final answer
   x = 46,355.73