Finding the Third Proportional to 1,672.69 and 3,643.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,672.69 : 3,643.22 = 3,643.22 : x
2. Step 2: Convert to fraction form
   1,672.69/3,643.22 = 3,643.22/x
3. Step 3: Cross multiply
   1,672.69x = 3,643.22 × 3,643.22
4. Step 4: Simplify right side
   1,672.69x = 13,273,042.86
5. Step 5: Solve for x
   x = 13,273,042.86/1,672.69
6. Step 6: Final answer
   x = 7,935.16