Finding the Third Proportional to 5,530,503 and 8,372,616

Step by Step Solution

1. Step 1: Write the proportion equation
   5,530,503 : 8,372,616 = 8,372,616 : x
2. Step 2: Convert to fraction form
   5,530,503/8,372,616 = 8,372,616/x
3. Step 3: Cross multiply
   5,530,503x = 8,372,616 × 8,372,616
4. Step 4: Simplify right side
   5,530,503x = 70,100,698,683,456
5. Step 5: Solve for x
   x = 70,100,698,683,456/5,530,503
6. Step 6: Final answer
   x = 12,675,284.45