Finding the Third Proportional to 1,556,439 and 3,408,123

Step by Step Solution

1. Step 1: Write the proportion equation
   1,556,439 : 3,408,123 = 3,408,123 : x
2. Step 2: Convert to fraction form
   1,556,439/3,408,123 = 3,408,123/x
3. Step 3: Cross multiply
   1,556,439x = 3,408,123 × 3,408,123
4. Step 4: Simplify right side
   1,556,439x = 11,615,302,383,129
5. Step 5: Solve for x
   x = 11,615,302,383,129/1,556,439
6. Step 6: Final answer
   x = 7,462,741.80