Finding the Third Proportional to 2,809.69 and 6,120.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,809.69 : 6,120.56 = 6,120.56 : x
2. Step 2: Convert to fraction form
   2,809.69/6,120.56 = 6,120.56/x
3. Step 3: Cross multiply
   2,809.69x = 6,120.56 × 6,120.56
4. Step 4: Simplify right side
   2,809.69x = 37,461,285.32
5. Step 5: Solve for x
   x = 37,461,285.32/2,809.69
6. Step 6: Final answer
   x = 13,332.90