Finding the Third Proportional to 720,678 and 1,530,250

Step by Step Solution

1. Step 1: Write the proportion equation
   720,678 : 1,530,250 = 1,530,250 : x
2. Step 2: Convert to fraction form
   720,678/1,530,250 = 1,530,250/x
3. Step 3: Cross multiply
   720,678x = 1,530,250 × 1,530,250
4. Step 4: Simplify right side
   720,678x = 2,341,665,062,500
5. Step 5: Solve for x
   x = 2,341,665,062,500/720,678
6. Step 6: Final answer
   x = 3,249,252.87