Finding the Third Proportional to 623,863 and 1,277,287

Step by Step Solution

1. Step 1: Write the proportion equation
   623,863 : 1,277,287 = 1,277,287 : x
2. Step 2: Convert to fraction form
   623,863/1,277,287 = 1,277,287/x
3. Step 3: Cross multiply
   623,863x = 1,277,287 × 1,277,287
4. Step 4: Simplify right side
   623,863x = 1,631,462,080,369
5. Step 5: Solve for x
   x = 1,631,462,080,369/623,863
6. Step 6: Final answer
   x = 2,615,096.71