Finding the Third Proportional to 127,536 and 279,313.50

Step by Step Solution

1. Step 1: Write the proportion equation
   127,536 : 279,313.50 = 279,313.50 : x
2. Step 2: Convert to fraction form
   127,536/279,313.50 = 279,313.50/x
3. Step 3: Cross multiply
   127,536x = 279,313.50 × 279,313.50
4. Step 4: Simplify right side
   127,536x = 78,016,031,282.25
5. Step 5: Solve for x
   x = 78,016,031,282.25/127,536
6. Step 6: Final answer
   x = 611,717.72