Finding the Third Proportional to 3,979,454 and 8,526,718

Step by Step Solution

1. Step 1: Write the proportion equation
   3,979,454 : 8,526,718 = 8,526,718 : x
2. Step 2: Convert to fraction form
   3,979,454/8,526,718 = 8,526,718/x
3. Step 3: Cross multiply
   3,979,454x = 8,526,718 × 8,526,718
4. Step 4: Simplify right side
   3,979,454x = 72,704,919,851,524
5. Step 5: Solve for x
   x = 72,704,919,851,524/3,979,454
6. Step 6: Final answer
   x = 18,270,074.20