Finding the Third Proportional to 89,710 and 188,714

Step by Step Solution

1. Step 1: Write the proportion equation
   89,710 : 188,714 = 188,714 : x
2. Step 2: Convert to fraction form
   89,710/188,714 = 188,714/x
3. Step 3: Cross multiply
   89,710x = 188,714 × 188,714
4. Step 4: Simplify right side
   89,710x = 35,612,973,796
5. Step 5: Solve for x
   x = 35,612,973,796/89,710
6. Step 6: Final answer
   x = 396,978.86