Finding the Third Proportional to 543,711 and 1,279,242

Step by Step Solution

1. Step 1: Write the proportion equation
   543,711 : 1,279,242 = 1,279,242 : x
2. Step 2: Convert to fraction form
   543,711/1,279,242 = 1,279,242/x
3. Step 3: Cross multiply
   543,711x = 1,279,242 × 1,279,242
4. Step 4: Simplify right side
   543,711x = 1,636,460,094,564
5. Step 5: Solve for x
   x = 1,636,460,094,564/543,711
6. Step 6: Final answer
   x = 3,009,797.66