Finding the Third Proportional to 2,513.63 and 5,519.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,513.63 : 5,519.63 = 5,519.63 : x
2. Step 2: Convert to fraction form
   2,513.63/5,519.63 = 5,519.63/x
3. Step 3: Cross multiply
   2,513.63x = 5,519.63 × 5,519.63
4. Step 4: Simplify right side
   2,513.63x = 30,466,260.14
5. Step 5: Solve for x
   x = 30,466,260.14/2,513.63
6. Step 6: Final answer
   x = 12,120.45