Finding the Third Proportional to 625,756 and 1,280,672

Step by Step Solution

1. Step 1: Write the proportion equation
   625,756 : 1,280,672 = 1,280,672 : x
2. Step 2: Convert to fraction form
   625,756/1,280,672 = 1,280,672/x
3. Step 3: Cross multiply
   625,756x = 1,280,672 × 1,280,672
4. Step 4: Simplify right side
   625,756x = 1,640,120,771,584
5. Step 5: Solve for x
   x = 1,640,120,771,584/625,756
6. Step 6: Final answer
   x = 2,621,022.85