Finding the Third Proportional to 2,920,644 and 4,356,666

Step by Step Solution

1. Step 1: Write the proportion equation
   2,920,644 : 4,356,666 = 4,356,666 : x
2. Step 2: Convert to fraction form
   2,920,644/4,356,666 = 4,356,666/x
3. Step 3: Cross multiply
   2,920,644x = 4,356,666 × 4,356,666
4. Step 4: Simplify right side
   2,920,644x = 18,980,538,635,556
5. Step 5: Solve for x
   x = 18,980,538,635,556/2,920,644
6. Step 6: Final answer
   x = 6,498,751.18