Finding the Third Proportional to 326,691.56 and 494,961.89

Step by Step Solution

1. Step 1: Write the proportion equation
   326,691.56 : 494,961.89 = 494,961.89 : x
2. Step 2: Convert to fraction form
   326,691.56/494,961.89 = 494,961.89/x
3. Step 3: Cross multiply
   326,691.56x = 494,961.89 × 494,961.89
4. Step 4: Simplify right side
   326,691.56x = 244,987,273,171.07
5. Step 5: Solve for x
   x = 244,987,273,171.07/326,691.56
6. Step 6: Final answer
   x = 749,903.89