Finding the Third Proportional to 3,859,765 and 5,677,378

Step by Step Solution

1. Step 1: Write the proportion equation
   3,859,765 : 5,677,378 = 5,677,378 : x
2. Step 2: Convert to fraction form
   3,859,765/5,677,378 = 5,677,378/x
3. Step 3: Cross multiply
   3,859,765x = 5,677,378 × 5,677,378
4. Step 4: Simplify right side
   3,859,765x = 32,232,620,954,884
5. Step 5: Solve for x
   x = 32,232,620,954,884/3,859,765
6. Step 6: Final answer
   x = 8,350,928.35