Finding the Third Proportional to 3,647,138 and 7,936,470

Step by Step Solution

1. Step 1: Write the proportion equation
   3,647,138 : 7,936,470 = 7,936,470 : x
2. Step 2: Convert to fraction form
   3,647,138/7,936,470 = 7,936,470/x
3. Step 3: Cross multiply
   3,647,138x = 7,936,470 × 7,936,470
4. Step 4: Simplify right side
   3,647,138x = 62,987,556,060,900
5. Step 5: Solve for x
   x = 62,987,556,060,900/3,647,138
6. Step 6: Final answer
   x = 17,270,406.57