Finding the Third Proportional to 545,216 and 1,189,574

Step by Step Solution

1. Step 1: Write the proportion equation
   545,216 : 1,189,574 = 1,189,574 : x
2. Step 2: Convert to fraction form
   545,216/1,189,574 = 1,189,574/x
3. Step 3: Cross multiply
   545,216x = 1,189,574 × 1,189,574
4. Step 4: Simplify right side
   545,216x = 1,415,086,301,476
5. Step 5: Solve for x
   x = 1,415,086,301,476/545,216
6. Step 6: Final answer
   x = 2,595,459.97