Finding the Third Proportional to 3,420,156 and 7,226,520

Step by Step Solution

1. Step 1: Write the proportion equation
   3,420,156 : 7,226,520 = 7,226,520 : x
2. Step 2: Convert to fraction form
   3,420,156/7,226,520 = 7,226,520/x
3. Step 3: Cross multiply
   3,420,156x = 7,226,520 × 7,226,520
4. Step 4: Simplify right side
   3,420,156x = 52,222,591,310,400
5. Step 5: Solve for x
   x = 52,222,591,310,400/3,420,156
6. Step 6: Final answer
   x = 15,269,067.06