Finding the Third Proportional to 71,340.75 and 168,714

Step by Step Solution

1. Step 1: Write the proportion equation
   71,340.75 : 168,714 = 168,714 : x
2. Step 2: Convert to fraction form
   71,340.75/168,714 = 168,714/x
3. Step 3: Cross multiply
   71,340.75x = 168,714 × 168,714
4. Step 4: Simplify right side
   71,340.75x = 28,464,413,796
5. Step 5: Solve for x
   x = 28,464,413,796/71,340.75
6. Step 6: Final answer
   x = 398,992.35