Finding the Third Proportional to 8,368,142 and 12,930,910

Step by Step Solution

1. Step 1: Write the proportion equation
   8,368,142 : 12,930,910 = 12,930,910 : x
2. Step 2: Convert to fraction form
   8,368,142/12,930,910 = 12,930,910/x
3. Step 3: Cross multiply
   8,368,142x = 12,930,910 × 12,930,910
4. Step 4: Simplify right side
   8,368,142x = 167,208,433,428,100
5. Step 5: Solve for x
   x = 167,208,433,428,100/8,368,142
6. Step 6: Final answer
   x = 19,981,548.28