Finding the Third Proportional to 809,792 and 1,772,128

Step by Step Solution

1. Step 1: Write the proportion equation
   809,792 : 1,772,128 = 1,772,128 : x
2. Step 2: Convert to fraction form
   809,792/1,772,128 = 1,772,128/x
3. Step 3: Cross multiply
   809,792x = 1,772,128 × 1,772,128
4. Step 4: Simplify right side
   809,792x = 3,140,437,648,384
5. Step 5: Solve for x
   x = 3,140,437,648,384/809,792
6. Step 6: Final answer
   x = 3,878,079.37