Finding the Third Proportional to 543,456 and 1,191,780

Step by Step Solution

1. Step 1: Write the proportion equation
   543,456 : 1,191,780 = 1,191,780 : x
2. Step 2: Convert to fraction form
   543,456/1,191,780 = 1,191,780/x
3. Step 3: Cross multiply
   543,456x = 1,191,780 × 1,191,780
4. Step 4: Simplify right side
   543,456x = 1,420,339,568,400
5. Step 5: Solve for x
   x = 1,420,339,568,400/543,456
6. Step 6: Final answer
   x = 2,613,531.86