Finding the Third Proportional to 3,971,504 and 8,572,876

Step by Step Solution

1. Step 1: Write the proportion equation
   3,971,504 : 8,572,876 = 8,572,876 : x
2. Step 2: Convert to fraction form
   3,971,504/8,572,876 = 8,572,876/x
3. Step 3: Cross multiply
   3,971,504x = 8,572,876 × 8,572,876
4. Step 4: Simplify right side
   3,971,504x = 73,494,202,911,376
5. Step 5: Solve for x
   x = 73,494,202,911,376/3,971,504
6. Step 6: Final answer
   x = 18,505,383.08