Finding the Third Proportional to 1,223,112 and 1,798,720

Step by Step Solution

1. Step 1: Write the proportion equation
   1,223,112 : 1,798,720 = 1,798,720 : x
2. Step 2: Convert to fraction form
   1,223,112/1,798,720 = 1,798,720/x
3. Step 3: Cross multiply
   1,223,112x = 1,798,720 × 1,798,720
4. Step 4: Simplify right side
   1,223,112x = 3,235,393,638,400
5. Step 5: Solve for x
   x = 3,235,393,638,400/1,223,112
6. Step 6: Final answer
   x = 2,645,214.53