Finding the Third Proportional to 567,621 and 853,822.50

Step by Step Solution

1. Step 1: Write the proportion equation
   567,621 : 853,822.50 = 853,822.50 : x
2. Step 2: Convert to fraction form
   567,621/853,822.50 = 853,822.50/x
3. Step 3: Cross multiply
   567,621x = 853,822.50 × 853,822.50
4. Step 4: Simplify right side
   567,621x = 729,012,861,506.25
5. Step 5: Solve for x
   x = 729,012,861,506.25/567,621
6. Step 6: Final answer
   x = 1,284,330.32