Finding the Third Proportional to 1,366,440 and 2,038,620

Step by Step Solution

1. Step 1: Write the proportion equation
   1,366,440 : 2,038,620 = 2,038,620 : x
2. Step 2: Convert to fraction form
   1,366,440/2,038,620 = 2,038,620/x
3. Step 3: Cross multiply
   1,366,440x = 2,038,620 × 2,038,620
4. Step 4: Simplify right side
   1,366,440x = 4,155,971,504,400
5. Step 5: Solve for x
   x = 4,155,971,504,400/1,366,440
6. Step 6: Final answer
   x = 3,041,459.20