Finding the Third Proportional to 4,945,818 and 10,422,996

Step by Step Solution

1. Step 1: Write the proportion equation
   4,945,818 : 10,422,996 = 10,422,996 : x
2. Step 2: Convert to fraction form
   4,945,818/10,422,996 = 10,422,996/x
3. Step 3: Cross multiply
   4,945,818x = 10,422,996 × 10,422,996
4. Step 4: Simplify right side
   4,945,818x = 108,638,845,616,016
5. Step 5: Solve for x
   x = 108,638,845,616,016/4,945,818
6. Step 6: Final answer
   x = 21,965,799.31