Finding the Third Proportional to 13,719 and 30,570

Step by Step Solution

1. Step 1: Write the proportion equation
   13,719 : 30,570 = 30,570 : x
2. Step 2: Convert to fraction form
   13,719/30,570 = 30,570/x
3. Step 3: Cross multiply
   13,719x = 30,570 × 30,570
4. Step 4: Simplify right side
   13,719x = 934,524,900
5. Step 5: Solve for x
   x = 934,524,900/13,719
6. Step 6: Final answer
   x = 68,119.02