Finding the Third Proportional to 1,921,586 and 4,204,324

Step by Step Solution

1. Step 1: Write the proportion equation
   1,921,586 : 4,204,324 = 4,204,324 : x
2. Step 2: Convert to fraction form
   1,921,586/4,204,324 = 4,204,324/x
3. Step 3: Cross multiply
   1,921,586x = 4,204,324 × 4,204,324
4. Step 4: Simplify right side
   1,921,586x = 17,676,340,296,976
5. Step 5: Solve for x
   x = 17,676,340,296,976/1,921,586
6. Step 6: Final answer
   x = 9,198,828.62