Finding the Third Proportional to 312,076.50 and 677,052

Step by Step Solution

1. Step 1: Write the proportion equation
   312,076.50 : 677,052 = 677,052 : x
2. Step 2: Convert to fraction form
   312,076.50/677,052 = 677,052/x
3. Step 3: Cross multiply
   312,076.50x = 677,052 × 677,052
4. Step 4: Simplify right side
   312,076.50x = 458,399,410,704
5. Step 5: Solve for x
   x = 458,399,410,704/312,076.50
6. Step 6: Final answer
   x = 1,468,868.73