Finding the Third Proportional to 515,224 and 1,128,864

Step by Step Solution

1. Step 1: Write the proportion equation
   515,224 : 1,128,864 = 1,128,864 : x
2. Step 2: Convert to fraction form
   515,224/1,128,864 = 1,128,864/x
3. Step 3: Cross multiply
   515,224x = 1,128,864 × 1,128,864
4. Step 4: Simplify right side
   515,224x = 1,274,333,930,496
5. Step 5: Solve for x
   x = 1,274,333,930,496/515,224
6. Step 6: Final answer
   x = 2,473,359.03