Finding the Third Proportional to 1,279.69 and 2,783.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,279.69 : 2,783.81 = 2,783.81 : x
2. Step 2: Convert to fraction form
   1,279.69/2,783.81 = 2,783.81/x
3. Step 3: Cross multiply
   1,279.69x = 2,783.81 × 2,783.81
4. Step 4: Simplify right side
   1,279.69x = 7,749,612.04
5. Step 5: Solve for x
   x = 7,749,612.04/1,279.69
6. Step 6: Final answer
   x = 6,055.86