Finding the Third Proportional to 277,809.75 and 613,453.50

Step by Step Solution

1. Step 1: Write the proportion equation
   277,809.75 : 613,453.50 = 613,453.50 : x
2. Step 2: Convert to fraction form
   277,809.75/613,453.50 = 613,453.50/x
3. Step 3: Cross multiply
   277,809.75x = 613,453.50 × 613,453.50
4. Step 4: Simplify right side
   277,809.75x = 376,325,196,662.25
5. Step 5: Solve for x
   x = 376,325,196,662.25/277,809.75
6. Step 6: Final answer
   x = 1,354,614.79