Finding the Third Proportional to 19,886 and 30,909

Step by Step Solution

1. Step 1: Write the proportion equation
   19,886 : 30,909 = 30,909 : x
2. Step 2: Convert to fraction form
   19,886/30,909 = 30,909/x
3. Step 3: Cross multiply
   19,886x = 30,909 × 30,909
4. Step 4: Simplify right side
   19,886x = 955,366,281
5. Step 5: Solve for x
   x = 955,366,281/19,886
6. Step 6: Final answer
   x = 48,042.15