Finding the Third Proportional to 820,860,992 and 1,805,892,563

Step by Step Solution

1. Step 1: Write the proportion equation
   820,860,992 : 1,805,892,563 = 1,805,892,563 : x
2. Step 2: Convert to fraction form
   820,860,992/1,805,892,563 = 1,805,892,563/x
3. Step 3: Cross multiply
   820,860,992x = 1,805,892,563 × 1,805,892,563
4. Step 4: Simplify right side
   820,860,992x = 3,261,247,949,098,708,992
5. Step 5: Solve for x
   x = 3,261,247,949,098,708,992/820,860,992
6. Step 6: Final answer
   x = 3,972,960,075.92