Finding the Third Proportional to 10,468 and 21,260

Step by Step Solution

1. Step 1: Write the proportion equation
   10,468 : 21,260 = 21,260 : x
2. Step 2: Convert to fraction form
   10,468/21,260 = 21,260/x
3. Step 3: Cross multiply
   10,468x = 21,260 × 21,260
4. Step 4: Simplify right side
   10,468x = 451,987,600
5. Step 5: Solve for x
   x = 451,987,600/10,468
6. Step 6: Final answer
   x = 43,178.03