Finding the Third Proportional to 1,187,433 and 2,315,451

Step by Step Solution

1. Step 1: Write the proportion equation
   1,187,433 : 2,315,451 = 2,315,451 : x
2. Step 2: Convert to fraction form
   1,187,433/2,315,451 = 2,315,451/x
3. Step 3: Cross multiply
   1,187,433x = 2,315,451 × 2,315,451
4. Step 4: Simplify right side
   1,187,433x = 5,361,313,333,401
5. Step 5: Solve for x
   x = 5,361,313,333,401/1,187,433
6. Step 6: Final answer
   x = 4,515,044.92