Finding the Third Proportional to 545,238 and 827,667

Step by Step Solution

1. Step 1: Write the proportion equation
   545,238 : 827,667 = 827,667 : x
2. Step 2: Convert to fraction form
   545,238/827,667 = 827,667/x
3. Step 3: Cross multiply
   545,238x = 827,667 × 827,667
4. Step 4: Simplify right side
   545,238x = 685,032,662,889
5. Step 5: Solve for x
   x = 685,032,662,889/545,238
6. Step 6: Final answer
   x = 1,256,392.00