Finding the Third Proportional to 5,678,910 and 12,315,996

Step by Step Solution

1. Step 1: Write the proportion equation
   5,678,910 : 12,315,996 = 12,315,996 : x
2. Step 2: Convert to fraction form
   5,678,910/12,315,996 = 12,315,996/x
3. Step 3: Cross multiply
   5,678,910x = 12,315,996 × 12,315,996
4. Step 4: Simplify right side
   5,678,910x = 151,683,757,472,016
5. Step 5: Solve for x
   x = 151,683,757,472,016/5,678,910
6. Step 6: Final answer
   x = 26,710,012.57