Finding the Third Proportional to 17,660 and 28,389

Step by Step Solution

1. Step 1: Write the proportion equation
   17,660 : 28,389 = 28,389 : x
2. Step 2: Convert to fraction form
   17,660/28,389 = 28,389/x
3. Step 3: Cross multiply
   17,660x = 28,389 × 28,389
4. Step 4: Simplify right side
   17,660x = 805,935,321
5. Step 5: Solve for x
   x = 805,935,321/17,660
6. Step 6: Final answer
   x = 45,636.20