Finding the Third Proportional to 17,708 and 38,740

Step by Step Solution

1. Step 1: Write the proportion equation
   17,708 : 38,740 = 38,740 : x
2. Step 2: Convert to fraction form
   17,708/38,740 = 38,740/x
3. Step 3: Cross multiply
   17,708x = 38,740 × 38,740
4. Step 4: Simplify right side
   17,708x = 1,500,787,600
5. Step 5: Solve for x
   x = 1,500,787,600/17,708
6. Step 6: Final answer
   x = 84,751.95