Finding the Third Proportional to 3,525,911 and 7,638,718

Step by Step Solution

1. Step 1: Write the proportion equation
   3,525,911 : 7,638,718 = 7,638,718 : x
2. Step 2: Convert to fraction form
   3,525,911/7,638,718 = 7,638,718/x
3. Step 3: Cross multiply
   3,525,911x = 7,638,718 × 7,638,718
4. Step 4: Simplify right side
   3,525,911x = 58,350,012,683,524
5. Step 5: Solve for x
   x = 58,350,012,683,524/3,525,911
6. Step 6: Final answer
   x = 16,548,918.19