Finding the Third Proportional to 19,842 and 30,709

Step by Step Solution

1. Step 1: Write the proportion equation
   19,842 : 30,709 = 30,709 : x
2. Step 2: Convert to fraction form
   19,842/30,709 = 30,709/x
3. Step 3: Cross multiply
   19,842x = 30,709 × 30,709
4. Step 4: Simplify right side
   19,842x = 943,042,681
5. Step 5: Solve for x
   x = 943,042,681/19,842
6. Step 6: Final answer
   x = 47,527.60