Finding the Third Proportional to 267,867 and 415,030.50

Step by Step Solution

1. Step 1: Write the proportion equation
   267,867 : 415,030.50 = 415,030.50 : x
2. Step 2: Convert to fraction form
   267,867/415,030.50 = 415,030.50/x
3. Step 3: Cross multiply
   267,867x = 415,030.50 × 415,030.50
4. Step 4: Simplify right side
   267,867x = 172,250,315,930.25
5. Step 5: Solve for x
   x = 172,250,315,930.25/267,867
6. Step 6: Final answer
   x = 643,044.18