Finding the Third Proportional to 5,439,100 and 8,158,647

Step by Step Solution

1. Step 1: Write the proportion equation
   5,439,100 : 8,158,647 = 8,158,647 : x
2. Step 2: Convert to fraction form
   5,439,100/8,158,647 = 8,158,647/x
3. Step 3: Cross multiply
   5,439,100x = 8,158,647 × 8,158,647
4. Step 4: Simplify right side
   5,439,100x = 66,563,520,870,609
5. Step 5: Solve for x
   x = 66,563,520,870,609/5,439,100
6. Step 6: Final answer
   x = 12,237,966.00