Finding the Third Proportional to 3,947,770 and 5,784,780

Step by Step Solution

1. Step 1: Write the proportion equation
   3,947,770 : 5,784,780 = 5,784,780 : x
2. Step 2: Convert to fraction form
   3,947,770/5,784,780 = 5,784,780/x
3. Step 3: Cross multiply
   3,947,770x = 5,784,780 × 5,784,780
4. Step 4: Simplify right side
   3,947,770x = 33,463,679,648,400
5. Step 5: Solve for x
   x = 33,463,679,648,400/3,947,770
6. Step 6: Final answer
   x = 8,476,603.16