Finding the Third Proportional to 213,320.38 and 458,298

Step by Step Solution

1. Step 1: Write the proportion equation
   213,320.38 : 458,298 = 458,298 : x
2. Step 2: Convert to fraction form
   213,320.38/458,298 = 458,298/x
3. Step 3: Cross multiply
   213,320.38x = 458,298 × 458,298
4. Step 4: Simplify right side
   213,320.38x = 210,037,056,804
5. Step 5: Solve for x
   x = 210,037,056,804/213,320.38
6. Step 6: Final answer
   x = 984,608.51