Finding the Third Proportional to 10,620 and 17,928

Step by Step Solution

1. Step 1: Write the proportion equation
   10,620 : 17,928 = 17,928 : x
2. Step 2: Convert to fraction form
   10,620/17,928 = 17,928/x
3. Step 3: Cross multiply
   10,620x = 17,928 × 17,928
4. Step 4: Simplify right side
   10,620x = 321,413,184
5. Step 5: Solve for x
   x = 321,413,184/10,620
6. Step 6: Final answer
   x = 30,264.89