Finding the Third Proportional to 1,245,128 and 1,823,355

Step by Step Solution

1. Step 1: Write the proportion equation
   1,245,128 : 1,823,355 = 1,823,355 : x
2. Step 2: Convert to fraction form
   1,245,128/1,823,355 = 1,823,355/x
3. Step 3: Cross multiply
   1,245,128x = 1,823,355 × 1,823,355
4. Step 4: Simplify right side
   1,245,128x = 3,324,623,456,025
5. Step 5: Solve for x
   x = 3,324,623,456,025/1,245,128
6. Step 6: Final answer
   x = 2,670,105.77