Finding the Third Proportional to 9,862 and 21,106

Step by Step Solution

1. Step 1: Write the proportion equation
   9,862 : 21,106 = 21,106 : x
2. Step 2: Convert to fraction form
   9,862/21,106 = 21,106/x
3. Step 3: Cross multiply
   9,862x = 21,106 × 21,106
4. Step 4: Simplify right side
   9,862x = 445,463,236
5. Step 5: Solve for x
   x = 445,463,236/9,862
6. Step 6: Final answer
   x = 45,169.66