Finding the Third Proportional to 35,243 and 54,687

Step by Step Solution

1. Step 1: Write the proportion equation
   35,243 : 54,687 = 54,687 : x
2. Step 2: Convert to fraction form
   35,243/54,687 = 54,687/x
3. Step 3: Cross multiply
   35,243x = 54,687 × 54,687
4. Step 4: Simplify right side
   35,243x = 2,990,667,969
5. Step 5: Solve for x
   x = 2,990,667,969/35,243
6. Step 6: Final answer
   x = 84,858.50