Finding the Third Proportional to 12,471 and 20,783

Step by Step Solution

1. Step 1: Write the proportion equation
   12,471 : 20,783 = 20,783 : x
2. Step 2: Convert to fraction form
   12,471/20,783 = 20,783/x
3. Step 3: Cross multiply
   12,471x = 20,783 × 20,783
4. Step 4: Simplify right side
   12,471x = 431,933,089
5. Step 5: Solve for x
   x = 431,933,089/12,471
6. Step 6: Final answer
   x = 34,635.00