Finding the Third Proportional to 3,315,762,661 and 7,190,978,696

Step by Step Solution

1. Step 1: Write the proportion equation
   3,315,762,661 : 7,190,978,696 = 7,190,978,696 : x
2. Step 2: Convert to fraction form
   3,315,762,661/7,190,978,696 = 7,190,978,696/x
3. Step 3: Cross multiply
   3,315,762,661x = 7,190,978,696 × 7,190,978,696
4. Step 4: Simplify right side
   3,315,762,661x = 51,710,174,606,325,858,304
5. Step 5: Solve for x
   x = 51,710,174,606,325,858,304/3,315,762,661
6. Step 6: Final answer
   x = 15,595,258,133.08