Finding the Third Proportional to 627,200 and 1,379,256

Step by Step Solution

1. Step 1: Write the proportion equation
   627,200 : 1,379,256 = 1,379,256 : x
2. Step 2: Convert to fraction form
   627,200/1,379,256 = 1,379,256/x
3. Step 3: Cross multiply
   627,200x = 1,379,256 × 1,379,256
4. Step 4: Simplify right side
   627,200x = 1,902,347,113,536
5. Step 5: Solve for x
   x = 1,902,347,113,536/627,200
6. Step 6: Final answer
   x = 3,033,078.94