Finding the Third Proportional to 3,289,968 and 7,215,488

Step by Step Solution

1. Step 1: Write the proportion equation
   3,289,968 : 7,215,488 = 7,215,488 : x
2. Step 2: Convert to fraction form
   3,289,968/7,215,488 = 7,215,488/x
3. Step 3: Cross multiply
   3,289,968x = 7,215,488 × 7,215,488
4. Step 4: Simplify right side
   3,289,968x = 52,063,267,078,144
5. Step 5: Solve for x
   x = 52,063,267,078,144/3,289,968
6. Step 6: Final answer
   x = 15,824,855.16