Finding the Third Proportional to 582,142 and 1,272,482

Step by Step Solution

1. Step 1: Write the proportion equation
   582,142 : 1,272,482 = 1,272,482 : x
2. Step 2: Convert to fraction form
   582,142/1,272,482 = 1,272,482/x
3. Step 3: Cross multiply
   582,142x = 1,272,482 × 1,272,482
4. Step 4: Simplify right side
   582,142x = 1,619,210,440,324
5. Step 5: Solve for x
   x = 1,619,210,440,324/582,142
6. Step 6: Final answer
   x = 2,781,469.88