Finding the Third Proportional to 208,756 and 456,896

Step by Step Solution

1. Step 1: Write the proportion equation
   208,756 : 456,896 = 456,896 : x
2. Step 2: Convert to fraction form
   208,756/456,896 = 456,896/x
3. Step 3: Cross multiply
   208,756x = 456,896 × 456,896
4. Step 4: Simplify right side
   208,756x = 208,753,954,816
5. Step 5: Solve for x
   x = 208,753,954,816/208,756
6. Step 6: Final answer
   x = 999,990.20