Finding the Third Proportional to 623,888 and 1,277,338

Step by Step Solution

1. Step 1: Write the proportion equation
   623,888 : 1,277,338 = 1,277,338 : x
2. Step 2: Convert to fraction form
   623,888/1,277,338 = 1,277,338/x
3. Step 3: Cross multiply
   623,888x = 1,277,338 × 1,277,338
4. Step 4: Simplify right side
   623,888x = 1,631,592,366,244
5. Step 5: Solve for x
   x = 1,631,592,366,244/623,888
6. Step 6: Final answer
   x = 2,615,200.75