Finding the Third Proportional to 2,578,860,488 and 3,871,020,269

Step by Step Solution

1. Step 1: Write the proportion equation
   2,578,860,488 : 3,871,020,269 = 3,871,020,269 : x
2. Step 2: Convert to fraction form
   2,578,860,488/3,871,020,269 = 3,871,020,269/x
3. Step 3: Cross multiply
   2,578,860,488x = 3,871,020,269 × 3,871,020,269
4. Step 4: Simplify right side
   2,578,860,488x = 14,984,797,923,008,831,488
5. Step 5: Solve for x
   x = 14,984,797,923,008,831,488/2,578,860,488
6. Step 6: Final answer
   x = 5,810,627,598.02