Finding the Third Proportional to 17,802 and 26,640

Step by Step Solution

1. Step 1: Write the proportion equation
   17,802 : 26,640 = 26,640 : x
2. Step 2: Convert to fraction form
   17,802/26,640 = 26,640/x
3. Step 3: Cross multiply
   17,802x = 26,640 × 26,640
4. Step 4: Simplify right side
   17,802x = 709,689,600
5. Step 5: Solve for x
   x = 709,689,600/17,802
6. Step 6: Final answer
   x = 39,865.72