Finding the Third Proportional to 1,515,892 and 2,289,634

Step by Step Solution

1. Step 1: Write the proportion equation
   1,515,892 : 2,289,634 = 2,289,634 : x
2. Step 2: Convert to fraction form
   1,515,892/2,289,634 = 2,289,634/x
3. Step 3: Cross multiply
   1,515,892x = 2,289,634 × 2,289,634
4. Step 4: Simplify right side
   1,515,892x = 5,242,423,853,956
5. Step 5: Solve for x
   x = 5,242,423,853,956/1,515,892
6. Step 6: Final answer
   x = 3,458,309.60