Finding the Third Proportional to 1,945,015 and 4,189,648

Step by Step Solution

1. Step 1: Write the proportion equation
   1,945,015 : 4,189,648 = 4,189,648 : x
2. Step 2: Convert to fraction form
   1,945,015/4,189,648 = 4,189,648/x
3. Step 3: Cross multiply
   1,945,015x = 4,189,648 × 4,189,648
4. Step 4: Simplify right side
   1,945,015x = 17,553,150,363,904
5. Step 5: Solve for x
   x = 17,553,150,363,904/1,945,015
6. Step 6: Final answer
   x = 9,024,686.37