Finding the Third Proportional to 538,012 and 1,180,512

Step by Step Solution

1. Step 1: Write the proportion equation
   538,012 : 1,180,512 = 1,180,512 : x
2. Step 2: Convert to fraction form
   538,012/1,180,512 = 1,180,512/x
3. Step 3: Cross multiply
   538,012x = 1,180,512 × 1,180,512
4. Step 4: Simplify right side
   538,012x = 1,393,608,582,144
5. Step 5: Solve for x
   x = 1,393,608,582,144/538,012
6. Step 6: Final answer
   x = 2,590,292.75