Finding the Third Proportional to 2,159,832 and 4,665,989

Step by Step Solution

1. Step 1: Write the proportion equation
   2,159,832 : 4,665,989 = 4,665,989 : x
2. Step 2: Convert to fraction form
   2,159,832/4,665,989 = 4,665,989/x
3. Step 3: Cross multiply
   2,159,832x = 4,665,989 × 4,665,989
4. Step 4: Simplify right side
   2,159,832x = 21,771,453,348,121
5. Step 5: Solve for x
   x = 21,771,453,348,121/2,159,832
6. Step 6: Final answer
   x = 10,080,160.56