Finding the Third Proportional to 207,276.38 and 320,076.56

Step by Step Solution

1. Step 1: Write the proportion equation
   207,276.38 : 320,076.56 = 320,076.56 : x
2. Step 2: Convert to fraction form
   207,276.38/320,076.56 = 320,076.56/x
3. Step 3: Cross multiply
   207,276.38x = 320,076.56 × 320,076.56
4. Step 4: Simplify right side
   207,276.38x = 102,449,005,861.82
5. Step 5: Solve for x
   x = 102,449,005,861.82/207,276.38
6. Step 6: Final answer
   x = 494,262.82