Finding the Third Proportional to 3,773,378 and 8,147,455

Step by Step Solution

1. Step 1: Write the proportion equation
   3,773,378 : 8,147,455 = 8,147,455 : x
2. Step 2: Convert to fraction form
   3,773,378/8,147,455 = 8,147,455/x
3. Step 3: Cross multiply
   3,773,378x = 8,147,455 × 8,147,455
4. Step 4: Simplify right side
   3,773,378x = 66,381,022,977,025
5. Step 5: Solve for x
   x = 66,381,022,977,025/3,773,378
6. Step 6: Final answer
   x = 17,591,935.65