Finding the Third Proportional to 404,780 and 891,058

Step by Step Solution

1. Step 1: Write the proportion equation
   404,780 : 891,058 = 891,058 : x
2. Step 2: Convert to fraction form
   404,780/891,058 = 891,058/x
3. Step 3: Cross multiply
   404,780x = 891,058 × 891,058
4. Step 4: Simplify right side
   404,780x = 793,984,359,364
5. Step 5: Solve for x
   x = 793,984,359,364/404,780
6. Step 6: Final answer
   x = 1,961,520.73