Finding the Third Proportional to 40,425 and 87,600

Step by Step Solution

1. Step 1: Write the proportion equation
   40,425 : 87,600 = 87,600 : x
2. Step 2: Convert to fraction form
   40,425/87,600 = 87,600/x
3. Step 3: Cross multiply
   40,425x = 87,600 × 87,600
4. Step 4: Simplify right side
   40,425x = 7,673,760,000
5. Step 5: Solve for x
   x = 7,673,760,000/40,425
6. Step 6: Final answer
   x = 189,827.09