Finding the Third Proportional to 3,679,394 and 8,042,788

Step by Step Solution

1. Step 1: Write the proportion equation
   3,679,394 : 8,042,788 = 8,042,788 : x
2. Step 2: Convert to fraction form
   3,679,394/8,042,788 = 8,042,788/x
3. Step 3: Cross multiply
   3,679,394x = 8,042,788 × 8,042,788
4. Step 4: Simplify right side
   3,679,394x = 64,686,438,812,944
5. Step 5: Solve for x
   x = 64,686,438,812,944/3,679,394
6. Step 6: Final answer
   x = 17,580,731.72