Finding the Third Proportional to 301,279.50 and 656,641.69

Step by Step Solution

1. Step 1: Write the proportion equation
   301,279.50 : 656,641.69 = 656,641.69 : x
2. Step 2: Convert to fraction form
   301,279.50/656,641.69 = 656,641.69/x
3. Step 3: Cross multiply
   301,279.50x = 656,641.69 × 656,641.69
4. Step 4: Simplify right side
   301,279.50x = 431,178,305,762.85
5. Step 5: Solve for x
   x = 431,178,305,762.85/301,279.50
6. Step 6: Final answer
   x = 1,431,157.13