Finding the Third Proportional to 3,538,643,902 and 5,494,419,260

Step by Step Solution

1. Step 1: Write the proportion equation
   3,538,643,902 : 5,494,419,260 = 5,494,419,260 : x
2. Step 2: Convert to fraction form
   3,538,643,902/5,494,419,260 = 5,494,419,260/x
3. Step 3: Cross multiply
   3,538,643,902x = 5,494,419,260 × 5,494,419,260
4. Step 4: Simplify right side
   3,538,643,902x = 30,188,643,004,658,946,048
5. Step 5: Solve for x
   x = 30,188,643,004,658,946,048/3,538,643,902
6. Step 6: Final answer
   x = 8,531,133,349.59