Finding the Third Proportional to 127,200 and 276,250

Step by Step Solution

1. Step 1: Write the proportion equation
   127,200 : 276,250 = 276,250 : x
2. Step 2: Convert to fraction form
   127,200/276,250 = 276,250/x
3. Step 3: Cross multiply
   127,200x = 276,250 × 276,250
4. Step 4: Simplify right side
   127,200x = 76,314,062,500
5. Step 5: Solve for x
   x = 76,314,062,500/127,200
6. Step 6: Final answer
   x = 599,953.32