Finding the Third Proportional to 3,345,612 and 7,122,786

Step by Step Solution

1. Step 1: Write the proportion equation
   3,345,612 : 7,122,786 = 7,122,786 : x
2. Step 2: Convert to fraction form
   3,345,612/7,122,786 = 7,122,786/x
3. Step 3: Cross multiply
   3,345,612x = 7,122,786 × 7,122,786
4. Step 4: Simplify right side
   3,345,612x = 50,734,080,401,796
5. Step 5: Solve for x
   x = 50,734,080,401,796/3,345,612
6. Step 6: Final answer
   x = 15,164,364.67