Finding the Third Proportional to 11,421 and 17,901

Step by Step Solution

1. Step 1: Write the proportion equation
   11,421 : 17,901 = 17,901 : x
2. Step 2: Convert to fraction form
   11,421/17,901 = 17,901/x
3. Step 3: Cross multiply
   11,421x = 17,901 × 17,901
4. Step 4: Simplify right side
   11,421x = 320,445,801
5. Step 5: Solve for x
   x = 320,445,801/11,421
6. Step 6: Final answer
   x = 28,057.60