Finding the Third Proportional to 35,668.50 and 53,391.38

Step by Step Solution

1. Step 1: Write the proportion equation
   35,668.50 : 53,391.38 = 53,391.38 : x
2. Step 2: Convert to fraction form
   35,668.50/53,391.38 = 53,391.38/x
3. Step 3: Cross multiply
   35,668.50x = 53,391.38 × 53,391.38
4. Step 4: Simplify right side
   35,668.50x = 2,850,638,924.39
5. Step 5: Solve for x
   x = 2,850,638,924.39/35,668.50
6. Step 6: Final answer
   x = 79,920.35