Finding the Third Proportional to 300,559.50 and 449,897.25

Step by Step Solution

1. Step 1: Write the proportion equation
   300,559.50 : 449,897.25 = 449,897.25 : x
2. Step 2: Convert to fraction form
   300,559.50/449,897.25 = 449,897.25/x
3. Step 3: Cross multiply
   300,559.50x = 449,897.25 × 449,897.25
4. Step 4: Simplify right side
   300,559.50x = 202,407,535,557.56
5. Step 5: Solve for x
   x = 202,407,535,557.56/300,559.50
6. Step 6: Final answer
   x = 673,435.83