Finding the Third Proportional to 583,410 and 1,280,868

Step by Step Solution

1. Step 1: Write the proportion equation
   583,410 : 1,280,868 = 1,280,868 : x
2. Step 2: Convert to fraction form
   583,410/1,280,868 = 1,280,868/x
3. Step 3: Cross multiply
   583,410x = 1,280,868 × 1,280,868
4. Step 4: Simplify right side
   583,410x = 1,640,622,833,424
5. Step 5: Solve for x
   x = 1,640,622,833,424/583,410
6. Step 6: Final answer
   x = 2,812,126.69