Finding the Third Proportional to 15,696 and 21,998

Step by Step Solution

1. Step 1: Write the proportion equation
   15,696 : 21,998 = 21,998 : x
2. Step 2: Convert to fraction form
   15,696/21,998 = 21,998/x
3. Step 3: Cross multiply
   15,696x = 21,998 × 21,998
4. Step 4: Simplify right side
   15,696x = 483,912,004
5. Step 5: Solve for x
   x = 483,912,004/15,696
6. Step 6: Final answer
   x = 30,830.28