Finding the Third Proportional to 8,508,238 and 12,863,624

Step by Step Solution

1. Step 1: Write the proportion equation
   8,508,238 : 12,863,624 = 12,863,624 : x
2. Step 2: Convert to fraction form
   8,508,238/12,863,624 = 12,863,624/x
3. Step 3: Cross multiply
   8,508,238x = 12,863,624 × 12,863,624
4. Step 4: Simplify right side
   8,508,238x = 165,472,822,413,376
5. Step 5: Solve for x
   x = 165,472,822,413,376/8,508,238
6. Step 6: Final answer
   x = 19,448,541.80