Finding the Third Proportional to 545,241 and 827,671.50

Step by Step Solution

1. Step 1: Write the proportion equation
   545,241 : 827,671.50 = 827,671.50 : x
2. Step 2: Convert to fraction form
   545,241/827,671.50 = 827,671.50/x
3. Step 3: Cross multiply
   545,241x = 827,671.50 × 827,671.50
4. Step 4: Simplify right side
   545,241x = 685,040,111,912.25
5. Step 5: Solve for x
   x = 685,040,111,912.25/545,241
6. Step 6: Final answer
   x = 1,256,398.75