Finding the Third Proportional to 339,007.78 and 743,056.03

Step by Step Solution

1. Step 1: Write the proportion equation
   339,007.78 : 743,056.03 = 743,056.03 : x
2. Step 2: Convert to fraction form
   339,007.78/743,056.03 = 743,056.03/x
3. Step 3: Cross multiply
   339,007.78x = 743,056.03 × 743,056.03
4. Step 4: Simplify right side
   339,007.78x = 552,132,265,577.00
5. Step 5: Solve for x
   x = 552,132,265,577.00/339,007.78
6. Step 6: Final answer
   x = 1,628,671.36