Finding the Third Proportional to 3,422,416 and 7,285,280

Step by Step Solution

1. Step 1: Write the proportion equation
   3,422,416 : 7,285,280 = 7,285,280 : x
2. Step 2: Convert to fraction form
   3,422,416/7,285,280 = 7,285,280/x
3. Step 3: Cross multiply
   3,422,416x = 7,285,280 × 7,285,280
4. Step 4: Simplify right side
   3,422,416x = 53,075,304,678,400
5. Step 5: Solve for x
   x = 53,075,304,678,400/3,422,416
6. Step 6: Final answer
   x = 15,508,139.48