Finding the Third Proportional to 127,809 and 276,775.50

Step by Step Solution

1. Step 1: Write the proportion equation
   127,809 : 276,775.50 = 276,775.50 : x
2. Step 2: Convert to fraction form
   127,809/276,775.50 = 276,775.50/x
3. Step 3: Cross multiply
   127,809x = 276,775.50 × 276,775.50
4. Step 4: Simplify right side
   127,809x = 76,604,677,400.25
5. Step 5: Solve for x
   x = 76,604,677,400.25/127,809
6. Step 6: Final answer
   x = 599,368.41