Finding the Third Proportional to 339,580.69 and 738,127.69

Step by Step Solution

1. Step 1: Write the proportion equation
   339,580.69 : 738,127.69 = 738,127.69 : x
2. Step 2: Convert to fraction form
   339,580.69/738,127.69 = 738,127.69/x
3. Step 3: Cross multiply
   339,580.69x = 738,127.69 × 738,127.69
4. Step 4: Simplify right side
   339,580.69x = 544,832,483,054.10
5. Step 5: Solve for x
   x = 544,832,483,054.10/339,580.69
6. Step 6: Final answer
   x = 1,604,427.17