Finding the Third Proportional to 8,263,560 and 12,826,419

Step by Step Solution

1. Step 1: Write the proportion equation
   8,263,560 : 12,826,419 = 12,826,419 : x
2. Step 2: Convert to fraction form
   8,263,560/12,826,419 = 12,826,419/x
3. Step 3: Cross multiply
   8,263,560x = 12,826,419 × 12,826,419
4. Step 4: Simplify right side
   8,263,560x = 164,517,024,363,561
5. Step 5: Solve for x
   x = 164,517,024,363,561/8,263,560
6. Step 6: Final answer
   x = 19,908,734.78