Finding the Third Proportional to 582,112 and 1,272,442

Step by Step Solution

1. Step 1: Write the proportion equation
   582,112 : 1,272,442 = 1,272,442 : x
2. Step 2: Convert to fraction form
   582,112/1,272,442 = 1,272,442/x
3. Step 3: Cross multiply
   582,112x = 1,272,442 × 1,272,442
4. Step 4: Simplify right side
   582,112x = 1,619,108,643,364
5. Step 5: Solve for x
   x = 1,619,108,643,364/582,112
6. Step 6: Final answer
   x = 2,781,438.35