Finding the Third Proportional to 17,304 and 38,640

Step by Step Solution

1. Step 1: Write the proportion equation
   17,304 : 38,640 = 38,640 : x
2. Step 2: Convert to fraction form
   17,304/38,640 = 38,640/x
3. Step 3: Cross multiply
   17,304x = 38,640 × 38,640
4. Step 4: Simplify right side
   17,304x = 1,493,049,600
5. Step 5: Solve for x
   x = 1,493,049,600/17,304
6. Step 6: Final answer
   x = 86,283.50