Finding the Third Proportional to 1,287,432 and 1,947,718

Step by Step Solution

1. Step 1: Write the proportion equation
   1,287,432 : 1,947,718 = 1,947,718 : x
2. Step 2: Convert to fraction form
   1,287,432/1,947,718 = 1,947,718/x
3. Step 3: Cross multiply
   1,287,432x = 1,947,718 × 1,947,718
4. Step 4: Simplify right side
   1,287,432x = 3,793,605,407,524
5. Step 5: Solve for x
   x = 3,793,605,407,524/1,287,432
6. Step 6: Final answer
   x = 2,946,645.27