Finding the Third Proportional to 17,820 and 27,816

Step by Step Solution

1. Step 1: Write the proportion equation
   17,820 : 27,816 = 27,816 : x
2. Step 2: Convert to fraction form
   17,820/27,816 = 27,816/x
3. Step 3: Cross multiply
   17,820x = 27,816 × 27,816
4. Step 4: Simplify right side
   17,820x = 773,729,856
5. Step 5: Solve for x
   x = 773,729,856/17,820
6. Step 6: Final answer
   x = 43,419.18