Finding the Third Proportional to 172,155.38 and 364,768.31

Step by Step Solution

1. Step 1: Write the proportion equation
   172,155.38 : 364,768.31 = 364,768.31 : x
2. Step 2: Convert to fraction form
   172,155.38/364,768.31 = 364,768.31/x
3. Step 3: Cross multiply
   172,155.38x = 364,768.31 × 364,768.31
4. Step 4: Simplify right side
   172,155.38x = 133,055,921,804.10
5. Step 5: Solve for x
   x = 133,055,921,804.10/172,155.38
6. Step 6: Final answer
   x = 772,882.76