Finding the Third Proportional to 8,248,845 and 12,479,436

Step by Step Solution

1. Step 1: Write the proportion equation
   8,248,845 : 12,479,436 = 12,479,436 : x
2. Step 2: Convert to fraction form
   8,248,845/12,479,436 = 12,479,436/x
3. Step 3: Cross multiply
   8,248,845x = 12,479,436 × 12,479,436
4. Step 4: Simplify right side
   8,248,845x = 155,736,322,878,096
5. Step 5: Solve for x
   x = 155,736,322,878,096/8,248,845
6. Step 6: Final answer
   x = 18,879,773.21