Finding the Third Proportional to 339,444 and 706,459.50

Step by Step Solution

1. Step 1: Write the proportion equation
   339,444 : 706,459.50 = 706,459.50 : x
2. Step 2: Convert to fraction form
   339,444/706,459.50 = 706,459.50/x
3. Step 3: Cross multiply
   339,444x = 706,459.50 × 706,459.50
4. Step 4: Simplify right side
   339,444x = 499,085,025,140.25
5. Step 5: Solve for x
   x = 499,085,025,140.25/339,444
6. Step 6: Final answer
   x = 1,470,301.51