Finding the Third Proportional to 3,979,285 and 8,525,890

Step by Step Solution

1. Step 1: Write the proportion equation
   3,979,285 : 8,525,890 = 8,525,890 : x
2. Step 2: Convert to fraction form
   3,979,285/8,525,890 = 8,525,890/x
3. Step 3: Cross multiply
   3,979,285x = 8,525,890 × 8,525,890
4. Step 4: Simplify right side
   3,979,285x = 72,690,800,292,100
5. Step 5: Solve for x
   x = 72,690,800,292,100/3,979,285
6. Step 6: Final answer
   x = 18,267,301.86