Finding the Third Proportional to 582,396 and 1,272,564

Step by Step Solution

1. Step 1: Write the proportion equation
   582,396 : 1,272,564 = 1,272,564 : x
2. Step 2: Convert to fraction form
   582,396/1,272,564 = 1,272,564/x
3. Step 3: Cross multiply
   582,396x = 1,272,564 × 1,272,564
4. Step 4: Simplify right side
   582,396x = 1,619,419,134,096
5. Step 5: Solve for x
   x = 1,619,419,134,096/582,396
6. Step 6: Final answer
   x = 2,780,615.14