Finding the Third Proportional to 5,192 and 10,474

Step by Step Solution

1. Step 1: Write the proportion equation
   5,192 : 10,474 = 10,474 : x
2. Step 2: Convert to fraction form
   5,192/10,474 = 10,474/x
3. Step 3: Cross multiply
   5,192x = 10,474 × 10,474
4. Step 4: Simplify right side
   5,192x = 109,704,676
5. Step 5: Solve for x
   x = 109,704,676/5,192
6. Step 6: Final answer
   x = 21,129.56