Finding the Third Proportional to 16,218.75 and 35,630.25

Step by Step Solution

1. Step 1: Write the proportion equation
   16,218.75 : 35,630.25 = 35,630.25 : x
2. Step 2: Convert to fraction form
   16,218.75/35,630.25 = 35,630.25/x
3. Step 3: Cross multiply
   16,218.75x = 35,630.25 × 35,630.25
4. Step 4: Simplify right side
   16,218.75x = 1,269,514,715.06
5. Step 5: Solve for x
   x = 1,269,514,715.06/16,218.75
6. Step 6: Final answer
   x = 78,274.51