Mean Proportional Calculation
The mean proportional between two numbers is the square root of their product. In this case, we are finding the mean proportional between 1.4 and 5.6.

Step 1: Calculate the product of the two numbers
1.4 * 5.6 = 7.84

Step 2: Find the square root of the product
√7.84 ≈ 2.8
Therefore, the mean proportional between 1.4 and 5.6 is approximately 2.8.

Explanation
The mean proportional is a concept in mathematics that helps us find a number that lies between two given numbers in a proportional manner. In this case, by calculating the square root of the product of 1.4 and 5.6, we determine the mean proportional to be 2.8. This means that 2.8 is the number that fits proportionally between 1.4 and 5.6.
By understanding and applying this concept, we can solve various mathematical problems and understand the relationship between numbers in a proportional manner. It is a useful tool in geometry, algebra, and other branches of mathematics.