Finding the Third Proportional to 39,609 and 59,418.56

Step by Step Solution

1. Step 1: Write the proportion equation
   39,609 : 59,418.56 = 59,418.56 : x
2. Step 2: Convert to fraction form
   39,609/59,418.56 = 59,418.56/x
3. Step 3: Cross multiply
   39,609x = 59,418.56 × 59,418.56
4. Step 4: Simplify right side
   39,609x = 3,530,565,569.57
5. Step 5: Solve for x
   x = 3,530,565,569.57/39,609
6. Step 6: Final answer
   x = 89,135.44