Finding the Third Proportional to 3,317,760 and 7,278,336

Step by Step Solution

1. Step 1: Write the proportion equation
   3,317,760 : 7,278,336 = 7,278,336 : x
2. Step 2: Convert to fraction form
   3,317,760/7,278,336 = 7,278,336/x
3. Step 3: Cross multiply
   3,317,760x = 7,278,336 × 7,278,336
4. Step 4: Simplify right side
   3,317,760x = 52,974,174,928,896
5. Step 5: Solve for x
   x = 52,974,174,928,896/3,317,760
6. Step 6: Final answer
   x = 15,966,849.60