Finding the Third Proportional to 3,408,672 and 7,427,520

Step by Step Solution

1. Step 1: Write the proportion equation
   3,408,672 : 7,427,520 = 7,427,520 : x
2. Step 2: Convert to fraction form
   3,408,672/7,427,520 = 7,427,520/x
3. Step 3: Cross multiply
   3,408,672x = 7,427,520 × 7,427,520
4. Step 4: Simplify right side
   3,408,672x = 55,168,053,350,400
5. Step 5: Solve for x
   x = 55,168,053,350,400/3,408,672
6. Step 6: Final answer
   x = 16,184,617.75