Finding the Third Proportional to 3,317,761 and 7,278,338

Step by Step Solution

1. Step 1: Write the proportion equation
   3,317,761 : 7,278,338 = 7,278,338 : x
2. Step 2: Convert to fraction form
   3,317,761/7,278,338 = 7,278,338/x
3. Step 3: Cross multiply
   3,317,761x = 7,278,338 × 7,278,338
4. Step 4: Simplify right side
   3,317,761x = 52,974,204,042,244
5. Step 5: Solve for x
   x = 52,974,204,042,244/3,317,761
6. Step 6: Final answer
   x = 15,966,853.56