Finding the Third Proportional to 251,145.56 and 379,054.69

Step by Step Solution

1. Step 1: Write the proportion equation
   251,145.56 : 379,054.69 = 379,054.69 : x
2. Step 2: Convert to fraction form
   251,145.56/379,054.69 = 379,054.69/x
3. Step 3: Cross multiply
   251,145.56x = 379,054.69 × 379,054.69
4. Step 4: Simplify right side
   251,145.56x = 143,682,456,115.72
5. Step 5: Solve for x
   x = 143,682,456,115.72/251,145.56
6. Step 6: Final answer
   x = 572,108.28