Finding the Third Proportional to 155,440.50 and 340,476

Step by Step Solution

1. Step 1: Write the proportion equation
   155,440.50 : 340,476 = 340,476 : x
2. Step 2: Convert to fraction form
   155,440.50/340,476 = 340,476/x
3. Step 3: Cross multiply
   155,440.50x = 340,476 × 340,476
4. Step 4: Simplify right side
   155,440.50x = 115,923,906,576
5. Step 5: Solve for x
   x = 115,923,906,576/155,440.50
6. Step 6: Final answer
   x = 745,776.72