Finding the Third Proportional to 16,618.50 and 35,388

Step by Step Solution

1. Step 1: Write the proportion equation
   16,618.50 : 35,388 = 35,388 : x
2. Step 2: Convert to fraction form
   16,618.50/35,388 = 35,388/x
3. Step 3: Cross multiply
   16,618.50x = 35,388 × 35,388
4. Step 4: Simplify right side
   16,618.50x = 1,252,310,544
5. Step 5: Solve for x
   x = 1,252,310,544/16,618.50
6. Step 6: Final answer
   x = 75,356.41