Finding the Third Proportional to 798,128 and 1,722,864

Step by Step Solution

1. Step 1: Write the proportion equation
   798,128 : 1,722,864 = 1,722,864 : x
2. Step 2: Convert to fraction form
   798,128/1,722,864 = 1,722,864/x
3. Step 3: Cross multiply
   798,128x = 1,722,864 × 1,722,864
4. Step 4: Simplify right side
   798,128x = 2,968,260,362,496
5. Step 5: Solve for x
   x = 2,968,260,362,496/798,128
6. Step 6: Final answer
   x = 3,719,027.98