Finding the Third Proportional to 17,910 and 31,089

Step by Step Solution

1. Step 1: Write the proportion equation
   17,910 : 31,089 = 31,089 : x
2. Step 2: Convert to fraction form
   17,910/31,089 = 31,089/x
3. Step 3: Cross multiply
   17,910x = 31,089 × 31,089
4. Step 4: Simplify right side
   17,910x = 966,525,921
5. Step 5: Solve for x
   x = 966,525,921/17,910
6. Step 6: Final answer
   x = 53,965.71