Finding the Third Proportional to 17,417 and 38,722

Step by Step Solution

1. Step 1: Write the proportion equation
   17,417 : 38,722 = 38,722 : x
2. Step 2: Convert to fraction form
   17,417/38,722 = 38,722/x
3. Step 3: Cross multiply
   17,417x = 38,722 × 38,722
4. Step 4: Simplify right side
   17,417x = 1,499,393,284
5. Step 5: Solve for x
   x = 1,499,393,284/17,417
6. Step 6: Final answer
   x = 86,087.92