Finding the Third Proportional to 3,590,840 and 7,679,344

Step by Step Solution

1. Step 1: Write the proportion equation
   3,590,840 : 7,679,344 = 7,679,344 : x
2. Step 2: Convert to fraction form
   3,590,840/7,679,344 = 7,679,344/x
3. Step 3: Cross multiply
   3,590,840x = 7,679,344 × 7,679,344
4. Step 4: Simplify right side
   3,590,840x = 58,972,324,270,336
5. Step 5: Solve for x
   x = 58,972,324,270,336/3,590,840
6. Step 6: Final answer
   x = 16,422,988.57