Finding the Third Proportional to 515,216 and 1,128,848

Step by Step Solution

1. Step 1: Write the proportion equation
   515,216 : 1,128,848 = 1,128,848 : x
2. Step 2: Convert to fraction form
   515,216/1,128,848 = 1,128,848/x
3. Step 3: Cross multiply
   515,216x = 1,128,848 × 1,128,848
4. Step 4: Simplify right side
   515,216x = 1,274,297,807,104
5. Step 5: Solve for x
   x = 1,274,297,807,104/515,216
6. Step 6: Final answer
   x = 2,473,327.32