Finding the Third Proportional to 159,288.50 and 347,555

Step by Step Solution

1. Step 1: Write the proportion equation
   159,288.50 : 347,555 = 347,555 : x
2. Step 2: Convert to fraction form
   159,288.50/347,555 = 347,555/x
3. Step 3: Cross multiply
   159,288.50x = 347,555 × 347,555
4. Step 4: Simplify right side
   159,288.50x = 120,794,478,025
5. Step 5: Solve for x
   x = 120,794,478,025/159,288.50
6. Step 6: Final answer
   x = 758,337.72