Finding the Third Proportional to 4,061,622 and 8,920,451

Step by Step Solution

1. Step 1: Write the proportion equation
   4,061,622 : 8,920,451 = 8,920,451 : x
2. Step 2: Convert to fraction form
   4,061,622/8,920,451 = 8,920,451/x
3. Step 3: Cross multiply
   4,061,622x = 8,920,451 × 8,920,451
4. Step 4: Simplify right side
   4,061,622x = 79,574,446,043,401
5. Step 5: Solve for x
   x = 79,574,446,043,401/4,061,622
6. Step 6: Final answer
   x = 19,591,790.19