Finding the Third Proportional to 414,042 and 612,040.50

Step by Step Solution

1. Step 1: Write the proportion equation
   414,042 : 612,040.50 = 612,040.50 : x
2. Step 2: Convert to fraction form
   414,042/612,040.50 = 612,040.50/x
3. Step 3: Cross multiply
   414,042x = 612,040.50 × 612,040.50
4. Step 4: Simplify right side
   414,042x = 374,593,573,640.25
5. Step 5: Solve for x
   x = 374,593,573,640.25/414,042
6. Step 6: Final answer
   x = 904,723.61