Finding the Third Proportional to 339,631.50 and 706,827

Step by Step Solution

1. Step 1: Write the proportion equation
   339,631.50 : 706,827 = 706,827 : x
2. Step 2: Convert to fraction form
   339,631.50/706,827 = 706,827/x
3. Step 3: Cross multiply
   339,631.50x = 706,827 × 706,827
4. Step 4: Simplify right side
   339,631.50x = 499,604,407,929
5. Step 5: Solve for x
   x = 499,604,407,929/339,631.50
6. Step 6: Final answer
   x = 1,471,019.05