Finding the Third Proportional to 10,287 and 21,302

Step by Step Solution

1. Step 1: Write the proportion equation
   10,287 : 21,302 = 21,302 : x
2. Step 2: Convert to fraction form
   10,287/21,302 = 21,302/x
3. Step 3: Cross multiply
   10,287x = 21,302 × 21,302
4. Step 4: Simplify right side
   10,287x = 453,775,204
5. Step 5: Solve for x
   x = 453,775,204/10,287
6. Step 6: Final answer
   x = 44,111.52