Finding the Third Proportional to 4,255,992 and 9,456,756

Step by Step Solution

1. Step 1: Write the proportion equation
   4,255,992 : 9,456,756 = 9,456,756 : x
2. Step 2: Convert to fraction form
   4,255,992/9,456,756 = 9,456,756/x
3. Step 3: Cross multiply
   4,255,992x = 9,456,756 × 9,456,756
4. Step 4: Simplify right side
   4,255,992x = 89,430,234,043,536
5. Step 5: Solve for x
   x = 89,430,234,043,536/4,255,992
6. Step 6: Final answer
   x = 21,012,782.46