Finding the Third Proportional to 3,420,713 and 7,436,819

Step by Step Solution

1. Step 1: Write the proportion equation
   3,420,713 : 7,436,819 = 7,436,819 : x
2. Step 2: Convert to fraction form
   3,420,713/7,436,819 = 7,436,819/x
3. Step 3: Cross multiply
   3,420,713x = 7,436,819 × 7,436,819
4. Step 4: Simplify right side
   3,420,713x = 55,306,276,838,761
5. Step 5: Solve for x
   x = 55,306,276,838,761/3,420,713
6. Step 6: Final answer
   x = 16,168,055.27