Finding the Third Proportional to 3,738,912 and 8,107,680

Step by Step Solution

1. Step 1: Write the proportion equation
   3,738,912 : 8,107,680 = 8,107,680 : x
2. Step 2: Convert to fraction form
   3,738,912/8,107,680 = 8,107,680/x
3. Step 3: Cross multiply
   3,738,912x = 8,107,680 × 8,107,680
4. Step 4: Simplify right side
   3,738,912x = 65,734,474,982,400
5. Step 5: Solve for x
   x = 65,734,474,982,400/3,738,912
6. Step 6: Final answer
   x = 17,581,177.35