Finding the Third Proportional to 2,636.57 and 4,087.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636.57 : 4,087.81 = 4,087.81 : x
2. Step 2: Convert to fraction form
   2,636.57/4,087.81 = 4,087.81/x
3. Step 3: Cross multiply
   2,636.57x = 4,087.81 × 4,087.81
4. Step 4: Simplify right side
   2,636.57x = 16,710,195.07
5. Step 5: Solve for x
   x = 16,710,195.07/2,636.57
6. Step 6: Final answer
   x = 6,337.84