Finding the Third Proportional to 1,260.98 and 2,643.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,260.98 : 2,643.47 = 2,643.47 : x
2. Step 2: Convert to fraction form
   1,260.98/2,643.47 = 2,643.47/x
3. Step 3: Cross multiply
   1,260.98x = 2,643.47 × 2,643.47
4. Step 4: Simplify right side
   1,260.98x = 6,987,927.03
5. Step 5: Solve for x
   x = 6,987,927.03/1,260.98
6. Step 6: Final answer
   x = 5,541.64