Finding the Third Proportional to 4,976 and 10,272

Step by Step Solution

1. Step 1: Write the proportion equation
   4,976 : 10,272 = 10,272 : x
2. Step 2: Convert to fraction form
   4,976/10,272 = 10,272/x
3. Step 3: Cross multiply
   4,976x = 10,272 × 10,272
4. Step 4: Simplify right side
   4,976x = 105,513,984
5. Step 5: Solve for x
   x = 105,513,984/4,976
6. Step 6: Final answer
   x = 21,204.58