Finding the Third Proportional to 415,477 and 918,144

Step by Step Solution

1. Step 1: Write the proportion equation
   415,477 : 918,144 = 918,144 : x
2. Step 2: Convert to fraction form
   415,477/918,144 = 918,144/x
3. Step 3: Cross multiply
   415,477x = 918,144 × 918,144
4. Step 4: Simplify right side
   415,477x = 842,988,404,736
5. Step 5: Solve for x
   x = 842,988,404,736/415,477
6. Step 6: Final answer
   x = 2,028,965.27