Finding the Third Proportional to 4,131,980 and 8,927,898

Step by Step Solution

1. Step 1: Write the proportion equation
   4,131,980 : 8,927,898 = 8,927,898 : x
2. Step 2: Convert to fraction form
   4,131,980/8,927,898 = 8,927,898/x
3. Step 3: Cross multiply
   4,131,980x = 8,927,898 × 8,927,898
4. Step 4: Simplify right side
   4,131,980x = 79,707,362,698,404
5. Step 5: Solve for x
   x = 79,707,362,698,404/4,131,980
6. Step 6: Final answer
   x = 19,290,355.40