Finding the Third Proportional to 17,917 and 27,685

Step by Step Solution

1. Step 1: Write the proportion equation
   17,917 : 27,685 = 27,685 : x
2. Step 2: Convert to fraction form
   17,917/27,685 = 27,685/x
3. Step 3: Cross multiply
   17,917x = 27,685 × 27,685
4. Step 4: Simplify right side
   17,917x = 766,459,225
5. Step 5: Solve for x
   x = 766,459,225/17,917
6. Step 6: Final answer
   x = 42,778.32