Finding the Third Proportional to 4,200,898 and 8,555,886

Step by Step Solution

1. Step 1: Write the proportion equation
   4,200,898 : 8,555,886 = 8,555,886 : x
2. Step 2: Convert to fraction form
   4,200,898/8,555,886 = 8,555,886/x
3. Step 3: Cross multiply
   4,200,898x = 8,555,886 × 8,555,886
4. Step 4: Simplify right side
   4,200,898x = 73,203,185,244,996
5. Step 5: Solve for x
   x = 73,203,185,244,996/4,200,898
6. Step 6: Final answer
   x = 17,425,604.06