Finding the Third Proportional to 17,687 and 27,458

Step by Step Solution

1. Step 1: Write the proportion equation
   17,687 : 27,458 = 27,458 : x
2. Step 2: Convert to fraction form
   17,687/27,458 = 27,458/x
3. Step 3: Cross multiply
   17,687x = 27,458 × 27,458
4. Step 4: Simplify right side
   17,687x = 753,941,764
5. Step 5: Solve for x
   x = 753,941,764/17,687
6. Step 6: Final answer
   x = 42,626.89