Finding the Third Proportional to 617,827.50 and 1,443,420

Step by Step Solution

1. Step 1: Write the proportion equation
   617,827.50 : 1,443,420 = 1,443,420 : x
2. Step 2: Convert to fraction form
   617,827.50/1,443,420 = 1,443,420/x
3. Step 3: Cross multiply
   617,827.50x = 1,443,420 × 1,443,420
4. Step 4: Simplify right side
   617,827.50x = 2,083,461,296,400
5. Step 5: Solve for x
   x = 2,083,461,296,400/617,827.50
6. Step 6: Final answer
   x = 3,372,237.88