Finding the Third Proportional to 3,679,393 and 8,042,786

Step by Step Solution

1. Step 1: Write the proportion equation
   3,679,393 : 8,042,786 = 8,042,786 : x
2. Step 2: Convert to fraction form
   3,679,393/8,042,786 = 8,042,786/x
3. Step 3: Cross multiply
   3,679,393x = 8,042,786 × 8,042,786
4. Step 4: Simplify right side
   3,679,393x = 64,686,406,641,796
5. Step 5: Solve for x
   x = 64,686,406,641,796/3,679,393
6. Step 6: Final answer
   x = 17,580,727.76