Finding the Third Proportional to 543,705 and 1,279,233

Step by Step Solution

1. Step 1: Write the proportion equation
   543,705 : 1,279,233 = 1,279,233 : x
2. Step 2: Convert to fraction form
   543,705/1,279,233 = 1,279,233/x
3. Step 3: Cross multiply
   543,705x = 1,279,233 × 1,279,233
4. Step 4: Simplify right side
   543,705x = 1,636,437,068,289
5. Step 5: Solve for x
   x = 1,636,437,068,289/543,705
6. Step 6: Final answer
   x = 3,009,788.52