Finding the Third Proportional to 2,118,888 and 4,598,991

Step by Step Solution

1. Step 1: Write the proportion equation
   2,118,888 : 4,598,991 = 4,598,991 : x
2. Step 2: Convert to fraction form
   2,118,888/4,598,991 = 4,598,991/x
3. Step 3: Cross multiply
   2,118,888x = 4,598,991 × 4,598,991
4. Step 4: Simplify right side
   2,118,888x = 21,150,718,218,081
5. Step 5: Solve for x
   x = 21,150,718,218,081/2,118,888
6. Step 6: Final answer
   x = 9,981,989.71