Finding the Third Proportional to 2,116.76 and 3,039.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116.76 : 3,039.40 = 3,039.40 : x
2. Step 2: Convert to fraction form
   2,116.76/3,039.40 = 3,039.40/x
3. Step 3: Cross multiply
   2,116.76x = 3,039.40 × 3,039.40
4. Step 4: Simplify right side
   2,116.76x = 9,237,942.86
5. Step 5: Solve for x
   x = 9,237,942.86/2,116.76
6. Step 6: Final answer
   x = 4,364.19