Finding the Third Proportional to 20,479 and 30,906

Step by Step Solution

1. Step 1: Write the proportion equation
   20,479 : 30,906 = 30,906 : x
2. Step 2: Convert to fraction form
   20,479/30,906 = 30,906/x
3. Step 3: Cross multiply
   20,479x = 30,906 × 30,906
4. Step 4: Simplify right side
   20,479x = 955,180,836
5. Step 5: Solve for x
   x = 955,180,836/20,479
6. Step 6: Final answer
   x = 46,641.97