Finding the Third Proportional to 19,709 and 30,603

Step by Step Solution

1. Step 1: Write the proportion equation
   19,709 : 30,603 = 30,603 : x
2. Step 2: Convert to fraction form
   19,709/30,603 = 30,603/x
3. Step 3: Cross multiply
   19,709x = 30,603 × 30,603
4. Step 4: Simplify right side
   19,709x = 936,543,609
5. Step 5: Solve for x
   x = 936,543,609/19,709
6. Step 6: Final answer
   x = 47,518.58