Finding the Third Proportional to 2,399.86 and 3,699.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,399.86 : 3,699.11 = 3,699.11 : x
2. Step 2: Convert to fraction form
   2,399.86/3,699.11 = 3,699.11/x
3. Step 3: Cross multiply
   2,399.86x = 3,699.11 × 3,699.11
4. Step 4: Simplify right side
   2,399.86x = 13,683,381.27
5. Step 5: Solve for x
   x = 13,683,381.27/2,399.86
6. Step 6: Final answer
   x = 5,701.74