Finding the Third Proportional to 127,810.69 and 276,780.38

Step by Step Solution

1. Step 1: Write the proportion equation
   127,810.69 : 276,780.38 = 276,780.38 : x
2. Step 2: Convert to fraction form
   127,810.69/276,780.38 = 276,780.38/x
3. Step 3: Cross multiply
   127,810.69x = 276,780.38 × 276,780.38
4. Step 4: Simplify right side
   127,810.69x = 76,607,375,985.14
5. Step 5: Solve for x
   x = 76,607,375,985.14/127,810.69
6. Step 6: Final answer
   x = 599,381.61