Finding the Third Proportional to 8,248,864 and 12,479,466

Step by Step Solution

1. Step 1: Write the proportion equation
   8,248,864 : 12,479,466 = 12,479,466 : x
2. Step 2: Convert to fraction form
   8,248,864/12,479,466 = 12,479,466/x
3. Step 3: Cross multiply
   8,248,864x = 12,479,466 × 12,479,466
4. Step 4: Simplify right side
   8,248,864x = 155,737,071,645,156
5. Step 5: Solve for x
   x = 155,737,071,645,156/8,248,864
6. Step 6: Final answer
   x = 18,879,820.50