Finding the Third Proportional to 143,210 and 194,403

Step by Step Solution

1. Step 1: Write the proportion equation
   143,210 : 194,403 = 194,403 : x
2. Step 2: Convert to fraction form
   143,210/194,403 = 194,403/x
3. Step 3: Cross multiply
   143,210x = 194,403 × 194,403
4. Step 4: Simplify right side
   143,210x = 37,792,526,409
5. Step 5: Solve for x
   x = 37,792,526,409/143,210
6. Step 6: Final answer
   x = 263,895.86