Finding the Third Proportional to 2,066,556 and 4,378,956

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066,556 : 4,378,956 = 4,378,956 : x
2. Step 2: Convert to fraction form
   2,066,556/4,378,956 = 4,378,956/x
3. Step 3: Cross multiply
   2,066,556x = 4,378,956 × 4,378,956
4. Step 4: Simplify right side
   2,066,556x = 19,175,255,649,936
5. Step 5: Solve for x
   x = 19,175,255,649,936/2,066,556
6. Step 6: Final answer
   x = 9,278,846.38