Finding the Third Proportional to 1,197,720 and 1,801,440

Step by Step Solution

1. Step 1: Write the proportion equation
   1,197,720 : 1,801,440 = 1,801,440 : x
2. Step 2: Convert to fraction form
   1,197,720/1,801,440 = 1,801,440/x
3. Step 3: Cross multiply
   1,197,720x = 1,801,440 × 1,801,440
4. Step 4: Simplify right side
   1,197,720x = 3,245,186,073,600
5. Step 5: Solve for x
   x = 3,245,186,073,600/1,197,720
6. Step 6: Final answer
   x = 2,709,469.72