Finding the Third Proportional to 3,687,609 and 8,047,680

Step by Step Solution

1. Step 1: Write the proportion equation
   3,687,609 : 8,047,680 = 8,047,680 : x
2. Step 2: Convert to fraction form
   3,687,609/8,047,680 = 8,047,680/x
3. Step 3: Cross multiply
   3,687,609x = 8,047,680 × 8,047,680
4. Step 4: Simplify right side
   3,687,609x = 64,765,153,382,400
5. Step 5: Solve for x
   x = 64,765,153,382,400/3,687,609
6. Step 6: Final answer
   x = 17,562,912.28