Finding the Third Proportional to 10,260 and 21,162

Step by Step Solution

1. Step 1: Write the proportion equation
   10,260 : 21,162 = 21,162 : x
2. Step 2: Convert to fraction form
   10,260/21,162 = 21,162/x
3. Step 3: Cross multiply
   10,260x = 21,162 × 21,162
4. Step 4: Simplify right side
   10,260x = 447,830,244
5. Step 5: Solve for x
   x = 447,830,244/10,260
6. Step 6: Final answer
   x = 43,648.17