Finding the Third Proportional to 182,212 and 400,298

Step by Step Solution

1. Step 1: Write the proportion equation
   182,212 : 400,298 = 400,298 : x
2. Step 2: Convert to fraction form
   182,212/400,298 = 400,298/x
3. Step 3: Cross multiply
   182,212x = 400,298 × 400,298
4. Step 4: Simplify right side
   182,212x = 160,238,488,804
5. Step 5: Solve for x
   x = 160,238,488,804/182,212
6. Step 6: Final answer
   x = 879,406.89