Finding the Third Proportional to 647,284 and 1,408,184

Step by Step Solution

1. Step 1: Write the proportion equation
   647,284 : 1,408,184 = 1,408,184 : x
2. Step 2: Convert to fraction form
   647,284/1,408,184 = 1,408,184/x
3. Step 3: Cross multiply
   647,284x = 1,408,184 × 1,408,184
4. Step 4: Simplify right side
   647,284x = 1,982,982,177,856
5. Step 5: Solve for x
   x = 1,982,982,177,856/647,284
6. Step 6: Final answer
   x = 3,063,542.71