Finding the Third Proportional to 531,056 and 800,991.50

Step by Step Solution

1. Step 1: Write the proportion equation
   531,056 : 800,991.50 = 800,991.50 : x
2. Step 2: Convert to fraction form
   531,056/800,991.50 = 800,991.50/x
3. Step 3: Cross multiply
   531,056x = 800,991.50 × 800,991.50
4. Step 4: Simplify right side
   531,056x = 641,587,383,072.25
5. Step 5: Solve for x
   x = 641,587,383,072.25/531,056
6. Step 6: Final answer
   x = 1,208,135.08