Finding the Third Proportional to 196,860.50 and 406,843.50

Step by Step Solution

1. Step 1: Write the proportion equation
   196,860.50 : 406,843.50 = 406,843.50 : x
2. Step 2: Convert to fraction form
   196,860.50/406,843.50 = 406,843.50/x
3. Step 3: Cross multiply
   196,860.50x = 406,843.50 × 406,843.50
4. Step 4: Simplify right side
   196,860.50x = 165,521,633,492.25
5. Step 5: Solve for x
   x = 165,521,633,492.25/196,860.50
6. Step 6: Final answer
   x = 840,806.73