Finding the Third Proportional to 155,544 and 334,555.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,544 : 334,555.50 = 334,555.50 : x
2. Step 2: Convert to fraction form
   155,544/334,555.50 = 334,555.50/x
3. Step 3: Cross multiply
   155,544x = 334,555.50 × 334,555.50
4. Step 4: Simplify right side
   155,544x = 111,927,382,580.25
5. Step 5: Solve for x
   x = 111,927,382,580.25/155,544
6. Step 6: Final answer
   x = 719,586.63