Finding the Third Proportional to 458,117.50 and 699,022.25

Step by Step Solution

1. Step 1: Write the proportion equation
   458,117.50 : 699,022.25 = 699,022.25 : x
2. Step 2: Convert to fraction form
   458,117.50/699,022.25 = 699,022.25/x
3. Step 3: Cross multiply
   458,117.50x = 699,022.25 × 699,022.25
4. Step 4: Simplify right side
   458,117.50x = 488,632,105,995.06
5. Step 5: Solve for x
   x = 488,632,105,995.06/458,117.50
6. Step 6: Final answer
   x = 1,066,608.69