Finding the Third Proportional to 1,180,640 and 1,771,216

Step by Step Solution

1. Step 1: Write the proportion equation
   1,180,640 : 1,771,216 = 1,771,216 : x
2. Step 2: Convert to fraction form
   1,180,640/1,771,216 = 1,771,216/x
3. Step 3: Cross multiply
   1,180,640x = 1,771,216 × 1,771,216
4. Step 4: Simplify right side
   1,180,640x = 3,137,206,118,656
5. Step 5: Solve for x
   x = 3,137,206,118,656/1,180,640
6. Step 6: Final answer
   x = 2,657,208.06