Finding the Third Proportional to 909,836.72 and 1,947,478.78

Step by Step Solution

1. Step 1: Write the proportion equation
   909,836.72 : 1,947,478.78 = 1,947,478.78 : x
2. Step 2: Convert to fraction form
   909,836.72/1,947,478.78 = 1,947,478.78/x
3. Step 3: Cross multiply
   909,836.72x = 1,947,478.78 × 1,947,478.78
4. Step 4: Simplify right side
   909,836.72x = 3,792,673,603,418.99
5. Step 5: Solve for x
   x = 3,792,673,603,418.99/909,836.72
6. Step 6: Final answer
   x = 4,168,521.15