Finding the Third Proportional to 558,216 and 1,222,848

Step by Step Solution

1. Step 1: Write the proportion equation
   558,216 : 1,222,848 = 1,222,848 : x
2. Step 2: Convert to fraction form
   558,216/1,222,848 = 1,222,848/x
3. Step 3: Cross multiply
   558,216x = 1,222,848 × 1,222,848
4. Step 4: Simplify right side
   558,216x = 1,495,357,231,104
5. Step 5: Solve for x
   x = 1,495,357,231,104/558,216
6. Step 6: Final answer
   x = 2,678,814.71