Finding the Third Proportional to 15,040 and 21,928

Step by Step Solution

1. Step 1: Write the proportion equation
   15,040 : 21,928 = 21,928 : x
2. Step 2: Convert to fraction form
   15,040/21,928 = 21,928/x
3. Step 3: Cross multiply
   15,040x = 21,928 × 21,928
4. Step 4: Simplify right side
   15,040x = 480,837,184
5. Step 5: Solve for x
   x = 480,837,184/15,040
6. Step 6: Final answer
   x = 31,970.56