Finding the Third Proportional to 3,307,596 and 7,121,928

Step by Step Solution

1. Step 1: Write the proportion equation
   3,307,596 : 7,121,928 = 7,121,928 : x
2. Step 2: Convert to fraction form
   3,307,596/7,121,928 = 7,121,928/x
3. Step 3: Cross multiply
   3,307,596x = 7,121,928 × 7,121,928
4. Step 4: Simplify right side
   3,307,596x = 50,721,858,437,184
5. Step 5: Solve for x
   x = 50,721,858,437,184/3,307,596
6. Step 6: Final answer
   x = 15,334,961.84