Finding the Third Proportional to 623,876 and 1,277,308

Step by Step Solution

1. Step 1: Write the proportion equation
   623,876 : 1,277,308 = 1,277,308 : x
2. Step 2: Convert to fraction form
   623,876/1,277,308 = 1,277,308/x
3. Step 3: Cross multiply
   623,876x = 1,277,308 × 1,277,308
4. Step 4: Simplify right side
   623,876x = 1,631,515,726,864
5. Step 5: Solve for x
   x = 1,631,515,726,864/623,876
6. Step 6: Final answer
   x = 2,615,128.21