Finding the Third Proportional to 3,386,142 and 7,231,512

Step by Step Solution

1. Step 1: Write the proportion equation
   3,386,142 : 7,231,512 = 7,231,512 : x
2. Step 2: Convert to fraction form
   3,386,142/7,231,512 = 7,231,512/x
3. Step 3: Cross multiply
   3,386,142x = 7,231,512 × 7,231,512
4. Step 4: Simplify right side
   3,386,142x = 52,294,765,806,144
5. Step 5: Solve for x
   x = 52,294,765,806,144/3,386,142
6. Step 6: Final answer
   x = 15,443,760.42