Finding the Third Proportional to 543,398 and 1,191,772

Step by Step Solution

1. Step 1: Write the proportion equation
   543,398 : 1,191,772 = 1,191,772 : x
2. Step 2: Convert to fraction form
   543,398/1,191,772 = 1,191,772/x
3. Step 3: Cross multiply
   543,398x = 1,191,772 × 1,191,772
4. Step 4: Simplify right side
   543,398x = 1,420,320,499,984
5. Step 5: Solve for x
   x = 1,420,320,499,984/543,398
6. Step 6: Final answer
   x = 2,613,775.72