Finding the Third Proportional to 8,327,454 and 12,491,289

Step by Step Solution

1. Step 1: Write the proportion equation
   8,327,454 : 12,491,289 = 12,491,289 : x
2. Step 2: Convert to fraction form
   8,327,454/12,491,289 = 12,491,289/x
3. Step 3: Cross multiply
   8,327,454x = 12,491,289 × 12,491,289
4. Step 4: Simplify right side
   8,327,454x = 156,032,300,881,521
5. Step 5: Solve for x
   x = 156,032,300,881,521/8,327,454
6. Step 6: Final answer
   x = 18,737,095.50