Finding the Third Proportional to 543,422 and 1,191,820

Step by Step Solution

1. Step 1: Write the proportion equation
   543,422 : 1,191,820 = 1,191,820 : x
2. Step 2: Convert to fraction form
   543,422/1,191,820 = 1,191,820/x
3. Step 3: Cross multiply
   543,422x = 1,191,820 × 1,191,820
4. Step 4: Simplify right side
   543,422x = 1,420,434,912,400
5. Step 5: Solve for x
   x = 1,420,434,912,400/543,422
6. Step 6: Final answer
   x = 2,613,870.83