Finding the Third Proportional to 647,212 and 1,408,052

Step by Step Solution

1. Step 1: Write the proportion equation
   647,212 : 1,408,052 = 1,408,052 : x
2. Step 2: Convert to fraction form
   647,212/1,408,052 = 1,408,052/x
3. Step 3: Cross multiply
   647,212x = 1,408,052 × 1,408,052
4. Step 4: Simplify right side
   647,212x = 1,982,610,434,704
5. Step 5: Solve for x
   x = 1,982,610,434,704/647,212
6. Step 6: Final answer
   x = 3,063,309.14