Finding the Third Proportional to 5,874,408 and 8,980,455

Step by Step Solution

1. Step 1: Write the proportion equation
   5,874,408 : 8,980,455 = 8,980,455 : x
2. Step 2: Convert to fraction form
   5,874,408/8,980,455 = 8,980,455/x
3. Step 3: Cross multiply
   5,874,408x = 8,980,455 × 8,980,455
4. Step 4: Simplify right side
   5,874,408x = 80,648,572,007,025
5. Step 5: Solve for x
   x = 80,648,572,007,025/5,874,408
6. Step 6: Final answer
   x = 13,728,799.91