Finding the Third Proportional to 515,222 and 1,128,860

Step by Step Solution

1. Step 1: Write the proportion equation
   515,222 : 1,128,860 = 1,128,860 : x
2. Step 2: Convert to fraction form
   515,222/1,128,860 = 1,128,860/x
3. Step 3: Cross multiply
   515,222x = 1,128,860 × 1,128,860
4. Step 4: Simplify right side
   515,222x = 1,274,324,899,600
5. Step 5: Solve for x
   x = 1,274,324,899,600/515,222
6. Step 6: Final answer
   x = 2,473,351.10