Finding the Third Proportional to 4,029,979 and 8,514,825

Step by Step Solution

1. Step 1: Write the proportion equation
   4,029,979 : 8,514,825 = 8,514,825 : x
2. Step 2: Convert to fraction form
   4,029,979/8,514,825 = 8,514,825/x
3. Step 3: Cross multiply
   4,029,979x = 8,514,825 × 8,514,825
4. Step 4: Simplify right side
   4,029,979x = 72,502,244,780,625
5. Step 5: Solve for x
   x = 72,502,244,780,625/4,029,979
6. Step 6: Final answer
   x = 17,990,725.21