Finding the Third Proportional to 582,120 and 1,272,456

Step by Step Solution

1. Step 1: Write the proportion equation
   582,120 : 1,272,456 = 1,272,456 : x
2. Step 2: Convert to fraction form
   582,120/1,272,456 = 1,272,456/x
3. Step 3: Cross multiply
   582,120x = 1,272,456 × 1,272,456
4. Step 4: Simplify right side
   582,120x = 1,619,144,271,936
5. Step 5: Solve for x
   x = 1,619,144,271,936/582,120
6. Step 6: Final answer
   x = 2,781,461.33