Finding the Third Proportional to 647,223 and 1,408,075

Step by Step Solution

1. Step 1: Write the proportion equation
   647,223 : 1,408,075 = 1,408,075 : x
2. Step 2: Convert to fraction form
   647,223/1,408,075 = 1,408,075/x
3. Step 3: Cross multiply
   647,223x = 1,408,075 × 1,408,075
4. Step 4: Simplify right side
   647,223x = 1,982,675,205,625
5. Step 5: Solve for x
   x = 1,982,675,205,625/647,223
6. Step 6: Final answer
   x = 3,063,357.15