Finding the Third Proportional to 3,946,086 and 8,479,594

Step by Step Solution

1. Step 1: Write the proportion equation
   3,946,086 : 8,479,594 = 8,479,594 : x
2. Step 2: Convert to fraction form
   3,946,086/8,479,594 = 8,479,594/x
3. Step 3: Cross multiply
   3,946,086x = 8,479,594 × 8,479,594
4. Step 4: Simplify right side
   3,946,086x = 71,903,514,404,836
5. Step 5: Solve for x
   x = 71,903,514,404,836/3,946,086
6. Step 6: Final answer
   x = 18,221,476.78