Finding the Third Proportional to 1,691,408 and 3,548,886

Step by Step Solution

1. Step 1: Write the proportion equation
   1,691,408 : 3,548,886 = 3,548,886 : x
2. Step 2: Convert to fraction form
   1,691,408/3,548,886 = 3,548,886/x
3. Step 3: Cross multiply
   1,691,408x = 3,548,886 × 3,548,886
4. Step 4: Simplify right side
   1,691,408x = 12,594,591,840,996
5. Step 5: Solve for x
   x = 12,594,591,840,996/1,691,408
6. Step 6: Final answer
   x = 7,446,217.50