Finding the Third Proportional to 517,600 and 1,139,456

Step by Step Solution

1. Step 1: Write the proportion equation
   517,600 : 1,139,456 = 1,139,456 : x
2. Step 2: Convert to fraction form
   517,600/1,139,456 = 1,139,456/x
3. Step 3: Cross multiply
   517,600x = 1,139,456 × 1,139,456
4. Step 4: Simplify right side
   517,600x = 1,298,359,975,936
5. Step 5: Solve for x
   x = 1,298,359,975,936/517,600
6. Step 6: Final answer
   x = 2,508,423.45