Finding the Third Proportional to 9,040 and 13,898

Step by Step Solution

1. Step 1: Write the proportion equation
   9,040 : 13,898 = 13,898 : x
2. Step 2: Convert to fraction form
   9,040/13,898 = 13,898/x
3. Step 3: Cross multiply
   9,040x = 13,898 × 13,898
4. Step 4: Simplify right side
   9,040x = 193,154,404
5. Step 5: Solve for x
   x = 193,154,404/9,040
6. Step 6: Final answer
   x = 21,366.64