Finding the Third Proportional to 222,356.81 and 488,997

Step by Step Solution

1. Step 1: Write the proportion equation
   222,356.81 : 488,997 = 488,997 : x
2. Step 2: Convert to fraction form
   222,356.81/488,997 = 488,997/x
3. Step 3: Cross multiply
   222,356.81x = 488,997 × 488,997
4. Step 4: Simplify right side
   222,356.81x = 239,118,066,009
5. Step 5: Solve for x
   x = 239,118,066,009/222,356.81
6. Step 6: Final answer
   x = 1,075,379.99