Finding the Third Proportional to 127,687.50 and 277,488

Step by Step Solution

1. Step 1: Write the proportion equation
   127,687.50 : 277,488 = 277,488 : x
2. Step 2: Convert to fraction form
   127,687.50/277,488 = 277,488/x
3. Step 3: Cross multiply
   127,687.50x = 277,488 × 277,488
4. Step 4: Simplify right side
   127,687.50x = 76,999,590,144
5. Step 5: Solve for x
   x = 76,999,590,144/127,687.50
6. Step 6: Final answer
   x = 603,031.54