Finding the Third Proportional to 8,105,872 and 12,649,560

Step by Step Solution

1. Step 1: Write the proportion equation
   8,105,872 : 12,649,560 = 12,649,560 : x
2. Step 2: Convert to fraction form
   8,105,872/12,649,560 = 12,649,560/x
3. Step 3: Cross multiply
   8,105,872x = 12,649,560 × 12,649,560
4. Step 4: Simplify right side
   8,105,872x = 160,011,368,193,600
5. Step 5: Solve for x
   x = 160,011,368,193,600/8,105,872
6. Step 6: Final answer
   x = 19,740,179.49