Finding the Third Proportional to 9,989 and 15,662

Step by Step Solution

1. Step 1: Write the proportion equation
   9,989 : 15,662 = 15,662 : x
2. Step 2: Convert to fraction form
   9,989/15,662 = 15,662/x
3. Step 3: Cross multiply
   9,989x = 15,662 × 15,662
4. Step 4: Simplify right side
   9,989x = 245,298,244
5. Step 5: Solve for x
   x = 245,298,244/9,989
6. Step 6: Final answer
   x = 24,556.84