Finding the Third Proportional to 1,720.69 and 2,499.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,720.69 : 2,499.47 = 2,499.47 : x
2. Step 2: Convert to fraction form
   1,720.69/2,499.47 = 2,499.47/x
3. Step 3: Cross multiply
   1,720.69x = 2,499.47 × 2,499.47
4. Step 4: Simplify right side
   1,720.69x = 6,247,344.03
5. Step 5: Solve for x
   x = 6,247,344.03/1,720.69
6. Step 6: Final answer
   x = 3,630.73