Finding the Third Proportional to 1,507.36 and 3,243.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,507.36 : 3,243.48 = 3,243.48 : x
2. Step 2: Convert to fraction form
   1,507.36/3,243.48 = 3,243.48/x
3. Step 3: Cross multiply
   1,507.36x = 3,243.48 × 3,243.48
4. Step 4: Simplify right side
   1,507.36x = 10,520,165.55
5. Step 5: Solve for x
   x = 10,520,165.55/1,507.36
6. Step 6: Final answer
   x = 6,979.20