Finding the Third Proportional to 127,099.50 and 276,331.50

Step by Step Solution

1. Step 1: Write the proportion equation
   127,099.50 : 276,331.50 = 276,331.50 : x
2. Step 2: Convert to fraction form
   127,099.50/276,331.50 = 276,331.50/x
3. Step 3: Cross multiply
   127,099.50x = 276,331.50 × 276,331.50
4. Step 4: Simplify right side
   127,099.50x = 76,359,097,892.25
5. Step 5: Solve for x
   x = 76,359,097,892.25/127,099.50
6. Step 6: Final answer
   x = 600,782.05