Finding the Third Proportional to 644,927 and 1,342,792

Step by Step Solution

1. Step 1: Write the proportion equation
   644,927 : 1,342,792 = 1,342,792 : x
2. Step 2: Convert to fraction form
   644,927/1,342,792 = 1,342,792/x
3. Step 3: Cross multiply
   644,927x = 1,342,792 × 1,342,792
4. Step 4: Simplify right side
   644,927x = 1,803,090,355,264
5. Step 5: Solve for x
   x = 1,803,090,355,264/644,927
6. Step 6: Final answer
   x = 2,795,805.35