Finding the Third Proportional to 598,858 and 1,280,692

Step by Step Solution

1. Step 1: Write the proportion equation
   598,858 : 1,280,692 = 1,280,692 : x
2. Step 2: Convert to fraction form
   598,858/1,280,692 = 1,280,692/x
3. Step 3: Cross multiply
   598,858x = 1,280,692 × 1,280,692
4. Step 4: Simplify right side
   598,858x = 1,640,171,998,864
5. Step 5: Solve for x
   x = 1,640,171,998,864/598,858
6. Step 6: Final answer
   x = 2,738,832.91