Finding the Third Proportional to 353,538 and 768,550.50

Step by Step Solution

1. Step 1: Write the proportion equation
   353,538 : 768,550.50 = 768,550.50 : x
2. Step 2: Convert to fraction form
   353,538/768,550.50 = 768,550.50/x
3. Step 3: Cross multiply
   353,538x = 768,550.50 × 768,550.50
4. Step 4: Simplify right side
   353,538x = 590,669,871,050.25
5. Step 5: Solve for x
   x = 590,669,871,050.25/353,538
6. Step 6: Final answer
   x = 1,670,739.41