Finding the Third Proportional to 1,264,620 and 1,928,439

Step by Step Solution

1. Step 1: Write the proportion equation
   1,264,620 : 1,928,439 = 1,928,439 : x
2. Step 2: Convert to fraction form
   1,264,620/1,928,439 = 1,928,439/x
3. Step 3: Cross multiply
   1,264,620x = 1,928,439 × 1,928,439
4. Step 4: Simplify right side
   1,264,620x = 3,718,876,976,721
5. Step 5: Solve for x
   x = 3,718,876,976,721/1,264,620
6. Step 6: Final answer
   x = 2,940,707.07