Finding the Third Proportional to 1,086,216 and 1,519,317

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086,216 : 1,519,317 = 1,519,317 : x
2. Step 2: Convert to fraction form
   1,086,216/1,519,317 = 1,519,317/x
3. Step 3: Cross multiply
   1,086,216x = 1,519,317 × 1,519,317
4. Step 4: Simplify right side
   1,086,216x = 2,308,324,146,489
5. Step 5: Solve for x
   x = 2,308,324,146,489/1,086,216
6. Step 6: Final answer
   x = 2,125,106.01