Finding the Third Proportional to 222,888 and 478,896

Step by Step Solution

1. Step 1: Write the proportion equation
   222,888 : 478,896 = 478,896 : x
2. Step 2: Convert to fraction form
   222,888/478,896 = 478,896/x
3. Step 3: Cross multiply
   222,888x = 478,896 × 478,896
4. Step 4: Simplify right side
   222,888x = 229,341,378,816
5. Step 5: Solve for x
   x = 229,341,378,816/222,888
6. Step 6: Final answer
   x = 1,028,953.46