Finding the Third Proportional to 1,513.50 and 3,243

Step by Step Solution

1. Step 1: Write the proportion equation
   1,513.50 : 3,243 = 3,243 : x
2. Step 2: Convert to fraction form
   1,513.50/3,243 = 3,243/x
3. Step 3: Cross multiply
   1,513.50x = 3,243 × 3,243
4. Step 4: Simplify right side
   1,513.50x = 10,517,049
5. Step 5: Solve for x
   x = 10,517,049/1,513.50
6. Step 6: Final answer
   x = 6,948.83