Finding the Third Proportional to 515,144 and 1,086,224

Step by Step Solution

1. Step 1: Write the proportion equation
   515,144 : 1,086,224 = 1,086,224 : x
2. Step 2: Convert to fraction form
   515,144/1,086,224 = 1,086,224/x
3. Step 3: Cross multiply
   515,144x = 1,086,224 × 1,086,224
4. Step 4: Simplify right side
   515,144x = 1,179,882,578,176
5. Step 5: Solve for x
   x = 1,179,882,578,176/515,144
6. Step 6: Final answer
   x = 2,290,393.71