Finding the Third Proportional to 5,189,866 and 8,264,483

Step by Step Solution

1. Step 1: Write the proportion equation
   5,189,866 : 8,264,483 = 8,264,483 : x
2. Step 2: Convert to fraction form
   5,189,866/8,264,483 = 8,264,483/x
3. Step 3: Cross multiply
   5,189,866x = 8,264,483 × 8,264,483
4. Step 4: Simplify right side
   5,189,866x = 68,301,679,257,289
5. Step 5: Solve for x
   x = 68,301,679,257,289/5,189,866
6. Step 6: Final answer
   x = 13,160,586.28