Finding the Third Proportional to 1,912,456 and 4,161,377

Step by Step Solution

1. Step 1: Write the proportion equation
   1,912,456 : 4,161,377 = 4,161,377 : x
2. Step 2: Convert to fraction form
   1,912,456/4,161,377 = 4,161,377/x
3. Step 3: Cross multiply
   1,912,456x = 4,161,377 × 4,161,377
4. Step 4: Simplify right side
   1,912,456x = 17,317,058,536,129
5. Step 5: Solve for x
   x = 17,317,058,536,129/1,912,456
6. Step 6: Final answer
   x = 9,054,879.45