Finding the Third Proportional to 343,383 and 743,968.50

Step by Step Solution

1. Step 1: Write the proportion equation
   343,383 : 743,968.50 = 743,968.50 : x
2. Step 2: Convert to fraction form
   343,383/743,968.50 = 743,968.50/x
3. Step 3: Cross multiply
   343,383x = 743,968.50 × 743,968.50
4. Step 4: Simplify right side
   343,383x = 553,489,128,992.25
5. Step 5: Solve for x
   x = 553,489,128,992.25/343,383
6. Step 6: Final answer
   x = 1,611,871.09