Finding the Third Proportional to 645,988,135 and 1,417,040,965

Step by Step Solution

1. Step 1: Write the proportion equation
   645,988,135 : 1,417,040,965 = 1,417,040,965 : x
2. Step 2: Convert to fraction form
   645,988,135/1,417,040,965 = 1,417,040,965/x
3. Step 3: Cross multiply
   645,988,135x = 1,417,040,965 × 1,417,040,965
4. Step 4: Simplify right side
   645,988,135x = 2,008,005,096,488,131,328
5. Step 5: Solve for x
   x = 2,008,005,096,488,131,328/645,988,135
6. Step 6: Final answer
   x = 3,108,424,114.46