Finding the Third Proportional to 815,120 and 1,796,128

Step by Step Solution

1. Step 1: Write the proportion equation
   815,120 : 1,796,128 = 1,796,128 : x
2. Step 2: Convert to fraction form
   815,120/1,796,128 = 1,796,128/x
3. Step 3: Cross multiply
   815,120x = 1,796,128 × 1,796,128
4. Step 4: Simplify right side
   815,120x = 3,226,075,792,384
5. Step 5: Solve for x
   x = 3,226,075,792,384/815,120
6. Step 6: Final answer
   x = 3,957,792.46