Finding the Third Proportional to 3,537,126 and 7,578,538

Step by Step Solution

1. Step 1: Write the proportion equation
   3,537,126 : 7,578,538 = 7,578,538 : x
2. Step 2: Convert to fraction form
   3,537,126/7,578,538 = 7,578,538/x
3. Step 3: Cross multiply
   3,537,126x = 7,578,538 × 7,578,538
4. Step 4: Simplify right side
   3,537,126x = 57,434,238,217,444
5. Step 5: Solve for x
   x = 57,434,238,217,444/3,537,126
6. Step 6: Final answer
   x = 16,237,543.76