Finding the Third Proportional to 1,682,857 and 3,670,309

Step by Step Solution

1. Step 1: Write the proportion equation
   1,682,857 : 3,670,309 = 3,670,309 : x
2. Step 2: Convert to fraction form
   1,682,857/3,670,309 = 3,670,309/x
3. Step 3: Cross multiply
   1,682,857x = 3,670,309 × 3,670,309
4. Step 4: Simplify right side
   1,682,857x = 13,471,168,155,481
5. Step 5: Solve for x
   x = 13,471,168,155,481/1,682,857
6. Step 6: Final answer
   x = 8,004,939.31