Finding the Third Proportional to 5,729,280 and 8,285,538

Step by Step Solution

1. Step 1: Write the proportion equation
   5,729,280 : 8,285,538 = 8,285,538 : x
2. Step 2: Convert to fraction form
   5,729,280/8,285,538 = 8,285,538/x
3. Step 3: Cross multiply
   5,729,280x = 8,285,538 × 8,285,538
4. Step 4: Simplify right side
   5,729,280x = 68,650,139,949,444
5. Step 5: Solve for x
   x = 68,650,139,949,444/5,729,280
6. Step 6: Final answer
   x = 11,982,332.85