Finding the Third Proportional to 3,860,705 and 8,393,710

Step by Step Solution

1. Step 1: Write the proportion equation
   3,860,705 : 8,393,710 = 8,393,710 : x
2. Step 2: Convert to fraction form
   3,860,705/8,393,710 = 8,393,710/x
3. Step 3: Cross multiply
   3,860,705x = 8,393,710 × 8,393,710
4. Step 4: Simplify right side
   3,860,705x = 70,454,367,564,100
5. Step 5: Solve for x
   x = 70,454,367,564,100/3,860,705
6. Step 6: Final answer
   x = 18,249,093.77