Finding the Third Proportional to 1,659,144 and 2,638,155

Step by Step Solution

1. Step 1: Write the proportion equation
   1,659,144 : 2,638,155 = 2,638,155 : x
2. Step 2: Convert to fraction form
   1,659,144/2,638,155 = 2,638,155/x
3. Step 3: Cross multiply
   1,659,144x = 2,638,155 × 2,638,155
4. Step 4: Simplify right side
   1,659,144x = 6,959,861,804,025
5. Step 5: Solve for x
   x = 6,959,861,804,025/1,659,144
6. Step 6: Final answer
   x = 4,194,850.96