Finding the Third Proportional to 3,537,130 and 7,578,978

Step by Step Solution

1. Step 1: Write the proportion equation
   3,537,130 : 7,578,978 = 7,578,978 : x
2. Step 2: Convert to fraction form
   3,537,130/7,578,978 = 7,578,978/x
3. Step 3: Cross multiply
   3,537,130x = 7,578,978 × 7,578,978
4. Step 4: Simplify right side
   3,537,130x = 57,440,907,524,484
5. Step 5: Solve for x
   x = 57,440,907,524,484/3,537,130
6. Step 6: Final answer
   x = 16,239,410.91