Finding the Third Proportional to 155,544 and 419,002.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,544 : 419,002.50 = 419,002.50 : x
2. Step 2: Convert to fraction form
   155,544/419,002.50 = 419,002.50/x
3. Step 3: Cross multiply
   155,544x = 419,002.50 × 419,002.50
4. Step 4: Simplify right side
   155,544x = 175,563,095,006.25
5. Step 5: Solve for x
   x = 175,563,095,006.25/155,544
6. Step 6: Final answer
   x = 1,128,703.74