Finding the Third Proportional to 455,886 and 978,230

Step by Step Solution

1. Step 1: Write the proportion equation
   455,886 : 978,230 = 978,230 : x
2. Step 2: Convert to fraction form
   455,886/978,230 = 978,230/x
3. Step 3: Cross multiply
   455,886x = 978,230 × 978,230
4. Step 4: Simplify right side
   455,886x = 956,933,932,900
5. Step 5: Solve for x
   x = 956,933,932,900/455,886
6. Step 6: Final answer
   x = 2,099,064.09