Finding the Third Proportional to 517,606 and 1,056,339

Step by Step Solution

1. Step 1: Write the proportion equation
   517,606 : 1,056,339 = 1,056,339 : x
2. Step 2: Convert to fraction form
   517,606/1,056,339 = 1,056,339/x
3. Step 3: Cross multiply
   517,606x = 1,056,339 × 1,056,339
4. Step 4: Simplify right side
   517,606x = 1,115,852,082,921
5. Step 5: Solve for x
   x = 1,115,852,082,921/517,606
6. Step 6: Final answer
   x = 2,155,794.34