Finding the Third Proportional to 249,794.50 and 380,949

Step by Step Solution

1. Step 1: Write the proportion equation
   249,794.50 : 380,949 = 380,949 : x
2. Step 2: Convert to fraction form
   249,794.50/380,949 = 380,949/x
3. Step 3: Cross multiply
   249,794.50x = 380,949 × 380,949
4. Step 4: Simplify right side
   249,794.50x = 145,122,140,601
5. Step 5: Solve for x
   x = 145,122,140,601/249,794.50
6. Step 6: Final answer
   x = 580,966.12