Finding the Third Proportional to 2,146,442 and 4,469,140

Step by Step Solution

1. Step 1: Write the proportion equation
   2,146,442 : 4,469,140 = 4,469,140 : x
2. Step 2: Convert to fraction form
   2,146,442/4,469,140 = 4,469,140/x
3. Step 3: Cross multiply
   2,146,442x = 4,469,140 × 4,469,140
4. Step 4: Simplify right side
   2,146,442x = 19,973,212,339,600
5. Step 5: Solve for x
   x = 19,973,212,339,600/2,146,442
6. Step 6: Final answer
   x = 9,305,265.34