Finding the Third Proportional to 8,780 and 17,969

Step by Step Solution

1. Step 1: Write the proportion equation
   8,780 : 17,969 = 17,969 : x
2. Step 2: Convert to fraction form
   8,780/17,969 = 17,969/x
3. Step 3: Cross multiply
   8,780x = 17,969 × 17,969
4. Step 4: Simplify right side
   8,780x = 322,884,961
5. Step 5: Solve for x
   x = 322,884,961/8,780
6. Step 6: Final answer
   x = 36,775.05