Finding the Third Proportional to 2,399.63 and 3,724.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,399.63 : 3,724.31 = 3,724.31 : x
2. Step 2: Convert to fraction form
   2,399.63/3,724.31 = 3,724.31/x
3. Step 3: Cross multiply
   2,399.63x = 3,724.31 × 3,724.31
4. Step 4: Simplify right side
   2,399.63x = 13,870,503.60
5. Step 5: Solve for x
   x = 13,870,503.60/2,399.63
6. Step 6: Final answer
   x = 5,780.28