Finding the Third Proportional to 3,408,678 and 7,427,532

Step by Step Solution

1. Step 1: Write the proportion equation
   3,408,678 : 7,427,532 = 7,427,532 : x
2. Step 2: Convert to fraction form
   3,408,678/7,427,532 = 7,427,532/x
3. Step 3: Cross multiply
   3,408,678x = 7,427,532 × 7,427,532
4. Step 4: Simplify right side
   3,408,678x = 55,168,231,611,024
5. Step 5: Solve for x
   x = 55,168,231,611,024/3,408,678
6. Step 6: Final answer
   x = 16,184,641.56