Finding the Third Proportional to 487,998 and 1,057,454

Step by Step Solution

1. Step 1: Write the proportion equation
   487,998 : 1,057,454 = 1,057,454 : x
2. Step 2: Convert to fraction form
   487,998/1,057,454 = 1,057,454/x
3. Step 3: Cross multiply
   487,998x = 1,057,454 × 1,057,454
4. Step 4: Simplify right side
   487,998x = 1,118,208,962,116
5. Step 5: Solve for x
   x = 1,118,208,962,116/487,998
6. Step 6: Final answer
   x = 2,291,421.20