Finding the Third Proportional to 9,889 and 17,579

Step by Step Solution

1. Step 1: Write the proportion equation
   9,889 : 17,579 = 17,579 : x
2. Step 2: Convert to fraction form
   9,889/17,579 = 17,579/x
3. Step 3: Cross multiply
   9,889x = 17,579 × 17,579
4. Step 4: Simplify right side
   9,889x = 309,021,241
5. Step 5: Solve for x
   x = 309,021,241/9,889
6. Step 6: Final answer
   x = 31,248.99