Finding the Third Proportional to 87,676.09 and 188,872.86

Step by Step Solution

1. Step 1: Write the proportion equation
   87,676.09 : 188,872.86 = 188,872.86 : x
2. Step 2: Convert to fraction form
   87,676.09/188,872.86 = 188,872.86/x
3. Step 3: Cross multiply
   87,676.09x = 188,872.86 × 188,872.86
4. Step 4: Simplify right side
   87,676.09x = 35,672,956,270.71
5. Step 5: Solve for x
   x = 35,672,956,270.71/87,676.09
6. Step 6: Final answer
   x = 406,872.10