Finding the Third Proportional to 172,300.50 and 251,768.25

Step by Step Solution

1. Step 1: Write the proportion equation
   172,300.50 : 251,768.25 = 251,768.25 : x
2. Step 2: Convert to fraction form
   172,300.50/251,768.25 = 251,768.25/x
3. Step 3: Cross multiply
   172,300.50x = 251,768.25 × 251,768.25
4. Step 4: Simplify right side
   172,300.50x = 63,387,251,708.06
5. Step 5: Solve for x
   x = 63,387,251,708.06/172,300.50
6. Step 6: Final answer
   x = 367,887.80