Finding the Third Proportional to 3,860,505 and 8,356,482

Step by Step Solution

1. Step 1: Write the proportion equation
   3,860,505 : 8,356,482 = 8,356,482 : x
2. Step 2: Convert to fraction form
   3,860,505/8,356,482 = 8,356,482/x
3. Step 3: Cross multiply
   3,860,505x = 8,356,482 × 8,356,482
4. Step 4: Simplify right side
   3,860,505x = 69,830,791,416,324
5. Step 5: Solve for x
   x = 69,830,791,416,324/3,860,505
6. Step 6: Final answer
   x = 18,088,512.10