Finding the Third Proportional to 127,308 and 279,768

Step by Step Solution

1. Step 1: Write the proportion equation
   127,308 : 279,768 = 279,768 : x
2. Step 2: Convert to fraction form
   127,308/279,768 = 279,768/x
3. Step 3: Cross multiply
   127,308x = 279,768 × 279,768
4. Step 4: Simplify right side
   127,308x = 78,270,133,824
5. Step 5: Solve for x
   x = 78,270,133,824/127,308
6. Step 6: Final answer
   x = 614,809.23