Finding the Third Proportional to 458.38 and 1,007.88

Step by Step Solution

1. Step 1: Write the proportion equation
   458.38 : 1,007.88 = 1,007.88 : x
2. Step 2: Convert to fraction form
   458.38/1,007.88 = 1,007.88/x
3. Step 3: Cross multiply
   458.38x = 1,007.88 × 1,007.88
4. Step 4: Simplify right side
   458.38x = 1,015,812.02
5. Step 5: Solve for x
   x = 1,015,812.02/458.38
6. Step 6: Final answer
   x = 2,216.12