Finding the Third Proportional to 127,273 and 287,550.50

Step by Step Solution

1. Step 1: Write the proportion equation
   127,273 : 287,550.50 = 287,550.50 : x
2. Step 2: Convert to fraction form
   127,273/287,550.50 = 287,550.50/x
3. Step 3: Cross multiply
   127,273x = 287,550.50 × 287,550.50
4. Step 4: Simplify right side
   127,273x = 82,685,290,050.25
5. Step 5: Solve for x
   x = 82,685,290,050.25/127,273
6. Step 6: Final answer
   x = 649,668.74