Finding the Third Proportional to 10,648 and 15,212

Step by Step Solution

1. Step 1: Write the proportion equation
   10,648 : 15,212 = 15,212 : x
2. Step 2: Convert to fraction form
   10,648/15,212 = 15,212/x
3. Step 3: Cross multiply
   10,648x = 15,212 × 15,212
4. Step 4: Simplify right side
   10,648x = 231,404,944
5. Step 5: Solve for x
   x = 231,404,944/10,648
6. Step 6: Final answer
   x = 21,732.24