Finding the Third Proportional to 677,674.50 and 993,878

Step by Step Solution

1. Step 1: Write the proportion equation
   677,674.50 : 993,878 = 993,878 : x
2. Step 2: Convert to fraction form
   677,674.50/993,878 = 993,878/x
3. Step 3: Cross multiply
   677,674.50x = 993,878 × 993,878
4. Step 4: Simplify right side
   677,674.50x = 987,793,478,884
5. Step 5: Solve for x
   x = 987,793,478,884/677,674.50
6. Step 6: Final answer
   x = 1,457,622.32