Finding the Third Proportional to 3,386,664 and 7,245,396

Step by Step Solution

1. Step 1: Write the proportion equation
   3,386,664 : 7,245,396 = 7,245,396 : x
2. Step 2: Convert to fraction form
   3,386,664/7,245,396 = 7,245,396/x
3. Step 3: Cross multiply
   3,386,664x = 7,245,396 × 7,245,396
4. Step 4: Simplify right side
   3,386,664x = 52,495,763,196,816
5. Step 5: Solve for x
   x = 52,495,763,196,816/3,386,664
6. Step 6: Final answer
   x = 15,500,729.68