Finding the Third Proportional to 2,147,388 and 4,631,020

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147,388 : 4,631,020 = 4,631,020 : x
2. Step 2: Convert to fraction form
   2,147,388/4,631,020 = 4,631,020/x
3. Step 3: Cross multiply
   2,147,388x = 4,631,020 × 4,631,020
4. Step 4: Simplify right side
   2,147,388x = 21,446,346,240,400
5. Step 5: Solve for x
   x = 21,446,346,240,400/2,147,388
6. Step 6: Final answer
   x = 9,987,178.02