Finding the Third Proportional to 10,469 and 21,343

Step by Step Solution

1. Step 1: Write the proportion equation
   10,469 : 21,343 = 21,343 : x
2. Step 2: Convert to fraction form
   10,469/21,343 = 21,343/x
3. Step 3: Cross multiply
   10,469x = 21,343 × 21,343
4. Step 4: Simplify right side
   10,469x = 455,523,649
5. Step 5: Solve for x
   x = 455,523,649/10,469
6. Step 6: Final answer
   x = 43,511.67