Finding the Third Proportional to 5,874,378 and 8,980,410

Step by Step Solution

1. Step 1: Write the proportion equation
   5,874,378 : 8,980,410 = 8,980,410 : x
2. Step 2: Convert to fraction form
   5,874,378/8,980,410 = 8,980,410/x
3. Step 3: Cross multiply
   5,874,378x = 8,980,410 × 8,980,410
4. Step 4: Simplify right side
   5,874,378x = 80,647,763,768,100
5. Step 5: Solve for x
   x = 80,647,763,768,100/5,874,378
6. Step 6: Final answer
   x = 13,728,732.43