Finding the Third Proportional to 4,456,646 and 9,767,656

Step by Step Solution

1. Step 1: Write the proportion equation
   4,456,646 : 9,767,656 = 9,767,656 : x
2. Step 2: Convert to fraction form
   4,456,646/9,767,656 = 9,767,656/x
3. Step 3: Cross multiply
   4,456,646x = 9,767,656 × 9,767,656
4. Step 4: Simplify right side
   4,456,646x = 95,407,103,734,336
5. Step 5: Solve for x
   x = 95,407,103,734,336/4,456,646
6. Step 6: Final answer
   x = 21,407,826.36