Finding the Third Proportional to 389,234 and 855,150

Step by Step Solution

1. Step 1: Write the proportion equation
   389,234 : 855,150 = 855,150 : x
2. Step 2: Convert to fraction form
   389,234/855,150 = 855,150/x
3. Step 3: Cross multiply
   389,234x = 855,150 × 855,150
4. Step 4: Simplify right side
   389,234x = 731,281,522,500
5. Step 5: Solve for x
   x = 731,281,522,500/389,234
6. Step 6: Final answer
   x = 1,878,770.93