Finding the Third Proportional to 2,803.78 and 5,572.97

Step by Step Solution

1. Step 1: Write the proportion equation
   2,803.78 : 5,572.97 = 5,572.97 : x
2. Step 2: Convert to fraction form
   2,803.78/5,572.97 = 5,572.97/x
3. Step 3: Cross multiply
   2,803.78x = 5,572.97 × 5,572.97
4. Step 4: Simplify right side
   2,803.78x = 31,057,980.69
5. Step 5: Solve for x
   x = 31,057,980.69/2,803.78
6. Step 6: Final answer
   x = 11,077.18