Finding the Third Proportional to 168,714 and 356,388

Step by Step Solution

1. Step 1: Write the proportion equation
   168,714 : 356,388 = 356,388 : x
2. Step 2: Convert to fraction form
   168,714/356,388 = 356,388/x
3. Step 3: Cross multiply
   168,714x = 356,388 × 356,388
4. Step 4: Simplify right side
   168,714x = 127,012,406,544
5. Step 5: Solve for x
   x = 127,012,406,544/168,714
6. Step 6: Final answer
   x = 752,826.72