Finding the Third Proportional to 3,859,772 and 5,677,387

Step by Step Solution

1. Step 1: Write the proportion equation
   3,859,772 : 5,677,387 = 5,677,387 : x
2. Step 2: Convert to fraction form
   3,859,772/5,677,387 = 5,677,387/x
3. Step 3: Cross multiply
   3,859,772x = 5,677,387 × 5,677,387
4. Step 4: Simplify right side
   3,859,772x = 32,232,723,147,769
5. Step 5: Solve for x
   x = 32,232,723,147,769/3,859,772
6. Step 6: Final answer
   x = 8,350,939.68