Finding the Third Proportional to 5,818.57 and 12,559.43

Step by Step Solution

1. Step 1: Write the proportion equation
   5,818.57 : 12,559.43 = 12,559.43 : x
2. Step 2: Convert to fraction form
   5,818.57/12,559.43 = 12,559.43/x
3. Step 3: Cross multiply
   5,818.57x = 12,559.43 × 12,559.43
4. Step 4: Simplify right side
   5,818.57x = 157,739,274.08
5. Step 5: Solve for x
   x = 157,739,274.08/5,818.57
6. Step 6: Final answer
   x = 27,109.63