Finding the Third Proportional to 2,945.11 and 4,126.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,945.11 : 4,126.57 = 4,126.57 : x
2. Step 2: Convert to fraction form
   2,945.11/4,126.57 = 4,126.57/x
3. Step 3: Cross multiply
   2,945.11x = 4,126.57 × 4,126.57
4. Step 4: Simplify right side
   2,945.11x = 17,028,582.54
5. Step 5: Solve for x
   x = 17,028,582.54/2,945.11
6. Step 6: Final answer
   x = 5,781.99