Finding the Third Proportional to 155,548.50 and 419,013

Step by Step Solution

1. Step 1: Write the proportion equation
   155,548.50 : 419,013 = 419,013 : x
2. Step 2: Convert to fraction form
   155,548.50/419,013 = 419,013/x
3. Step 3: Cross multiply
   155,548.50x = 419,013 × 419,013
4. Step 4: Simplify right side
   155,548.50x = 175,571,894,169
5. Step 5: Solve for x
   x = 175,571,894,169/155,548.50
6. Step 6: Final answer
   x = 1,128,727.66