Finding the Third Proportional to 3,345,624 and 7,122,816

Step by Step Solution

1. Step 1: Write the proportion equation
   3,345,624 : 7,122,816 = 7,122,816 : x
2. Step 2: Convert to fraction form
   3,345,624/7,122,816 = 7,122,816/x
3. Step 3: Cross multiply
   3,345,624x = 7,122,816 × 7,122,816
4. Step 4: Simplify right side
   3,345,624x = 50,734,507,769,856
5. Step 5: Solve for x
   x = 50,734,507,769,856/3,345,624
6. Step 6: Final answer
   x = 15,164,438.02