Finding the Third Proportional to 4,146,890,605 and 9,139,049,606

Step by Step Solution

1. Step 1: Write the proportion equation
   4,146,890,605 : 9,139,049,606 = 9,139,049,606 : x
2. Step 2: Convert to fraction form
   4,146,890,605/9,139,049,606 = 9,139,049,606/x
3. Step 3: Cross multiply
   4,146,890,605x = 9,139,049,606 × 9,139,049,606
4. Step 4: Simplify right side
   4,146,890,605x = 83,522,227,700,928,757,760
5. Step 5: Solve for x
   x = 83,522,227,700,928,757,760/4,146,890,605
6. Step 6: Final answer
   x = 20,140,928,627.40