Finding the Third Proportional to 143,492 and 210,852

Step by Step Solution

1. Step 1: Write the proportion equation
   143,492 : 210,852 = 210,852 : x
2. Step 2: Convert to fraction form
   143,492/210,852 = 210,852/x
3. Step 3: Cross multiply
   143,492x = 210,852 × 210,852
4. Step 4: Simplify right side
   143,492x = 44,458,565,904
5. Step 5: Solve for x
   x = 44,458,565,904/143,492
6. Step 6: Final answer
   x = 309,833.06