Finding the Third Proportional to 5,279,376 and 8,234,568

Step by Step Solution

1. Step 1: Write the proportion equation
   5,279,376 : 8,234,568 = 8,234,568 : x
2. Step 2: Convert to fraction form
   5,279,376/8,234,568 = 8,234,568/x
3. Step 3: Cross multiply
   5,279,376x = 8,234,568 × 8,234,568
4. Step 4: Simplify right side
   5,279,376x = 67,808,110,146,624
5. Step 5: Solve for x
   x = 67,808,110,146,624/5,279,376
6. Step 6: Final answer
   x = 12,843,963.03