Finding the Third Proportional to 715,389 and 1,555,026

Step by Step Solution

1. Step 1: Write the proportion equation
   715,389 : 1,555,026 = 1,555,026 : x
2. Step 2: Convert to fraction form
   715,389/1,555,026 = 1,555,026/x
3. Step 3: Cross multiply
   715,389x = 1,555,026 × 1,555,026
4. Step 4: Simplify right side
   715,389x = 2,418,105,860,676
5. Step 5: Solve for x
   x = 2,418,105,860,676/715,389
6. Step 6: Final answer
   x = 3,380,127.26