Finding the Third Proportional to 3,012.19 and 7,126.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,012.19 : 7,126.31 = 7,126.31 : x
2. Step 2: Convert to fraction form
   3,012.19/7,126.31 = 7,126.31/x
3. Step 3: Cross multiply
   3,012.19x = 7,126.31 × 7,126.31
4. Step 4: Simplify right side
   3,012.19x = 50,784,329.85
5. Step 5: Solve for x
   x = 50,784,329.85/3,012.19
6. Step 6: Final answer
   x = 16,859.62