Finding the Third Proportional to 619,992 and 877,530

Step by Step Solution

1. Step 1: Write the proportion equation
   619,992 : 877,530 = 877,530 : x
2. Step 2: Convert to fraction form
   619,992/877,530 = 877,530/x
3. Step 3: Cross multiply
   619,992x = 877,530 × 877,530
4. Step 4: Simplify right side
   619,992x = 770,058,900,900
5. Step 5: Solve for x
   x = 770,058,900,900/619,992
6. Step 6: Final answer
   x = 1,242,046.51