Finding the Third Proportional to 458,181 and 673,540.50

Step by Step Solution

1. Step 1: Write the proportion equation
   458,181 : 673,540.50 = 673,540.50 : x
2. Step 2: Convert to fraction form
   458,181/673,540.50 = 673,540.50/x
3. Step 3: Cross multiply
   458,181x = 673,540.50 × 673,540.50
4. Step 4: Simplify right side
   458,181x = 453,656,805,140.25
5. Step 5: Solve for x
   x = 453,656,805,140.25/458,181
6. Step 6: Final answer
   x = 990,125.75