Finding the Third Proportional to 617,830 and 1,443,425

Step by Step Solution

1. Step 1: Write the proportion equation
   617,830 : 1,443,425 = 1,443,425 : x
2. Step 2: Convert to fraction form
   617,830/1,443,425 = 1,443,425/x
3. Step 3: Cross multiply
   617,830x = 1,443,425 × 1,443,425
4. Step 4: Simplify right side
   617,830x = 2,083,475,730,625
5. Step 5: Solve for x
   x = 2,083,475,730,625/617,830
6. Step 6: Final answer
   x = 3,372,247.59