Finding the Third Proportional to 3,456,863 and 4,979,392

Step by Step Solution

1. Step 1: Write the proportion equation
   3,456,863 : 4,979,392 = 4,979,392 : x
2. Step 2: Convert to fraction form
   3,456,863/4,979,392 = 4,979,392/x
3. Step 3: Cross multiply
   3,456,863x = 4,979,392 × 4,979,392
4. Step 4: Simplify right side
   3,456,863x = 24,794,344,689,664
5. Step 5: Solve for x
   x = 24,794,344,689,664/3,456,863
6. Step 6: Final answer
   x = 7,172,498.50