Finding the Third Proportional to 682,184 and 1,408,240

Step by Step Solution

1. Step 1: Write the proportion equation
   682,184 : 1,408,240 = 1,408,240 : x
2. Step 2: Convert to fraction form
   682,184/1,408,240 = 1,408,240/x
3. Step 3: Cross multiply
   682,184x = 1,408,240 × 1,408,240
4. Step 4: Simplify right side
   682,184x = 1,983,139,897,600
5. Step 5: Solve for x
   x = 1,983,139,897,600/682,184
6. Step 6: Final answer
   x = 2,907,045.46