Finding the Third Proportional to 39,858 and 57,630

Step by Step Solution

1. Step 1: Write the proportion equation
   39,858 : 57,630 = 57,630 : x
2. Step 2: Convert to fraction form
   39,858/57,630 = 57,630/x
3. Step 3: Cross multiply
   39,858x = 57,630 × 57,630
4. Step 4: Simplify right side
   39,858x = 3,321,216,900
5. Step 5: Solve for x
   x = 3,321,216,900/39,858
6. Step 6: Final answer
   x = 83,326.23