Finding the Third Proportional to 19,712 and 30,540

Step by Step Solution

1. Step 1: Write the proportion equation
   19,712 : 30,540 = 30,540 : x
2. Step 2: Convert to fraction form
   19,712/30,540 = 30,540/x
3. Step 3: Cross multiply
   19,712x = 30,540 × 30,540
4. Step 4: Simplify right side
   19,712x = 932,691,600
5. Step 5: Solve for x
   x = 932,691,600/19,712
6. Step 6: Final answer
   x = 47,315.93