Finding the Third Proportional to 545,236 and 827,665.50

Step by Step Solution

1. Step 1: Write the proportion equation
   545,236 : 827,665.50 = 827,665.50 : x
2. Step 2: Convert to fraction form
   545,236/827,665.50 = 827,665.50/x
3. Step 3: Cross multiply
   545,236x = 827,665.50 × 827,665.50
4. Step 4: Simplify right side
   545,236x = 685,030,179,890.25
5. Step 5: Solve for x
   x = 685,030,179,890.25/545,236
6. Step 6: Final answer
   x = 1,256,392.06