Finding the Third Proportional to 155,359.50 and 334,501.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,359.50 : 334,501.50 = 334,501.50 : x
2. Step 2: Convert to fraction form
   155,359.50/334,501.50 = 334,501.50/x
3. Step 3: Cross multiply
   155,359.50x = 334,501.50 × 334,501.50
4. Step 4: Simplify right side
   155,359.50x = 111,891,253,502.25
5. Step 5: Solve for x
   x = 111,891,253,502.25/155,359.50
6. Step 6: Final answer
   x = 720,208.64