Finding the Third Proportional to 196,927.50 and 401,077.50

Step by Step Solution

1. Step 1: Write the proportion equation
   196,927.50 : 401,077.50 = 401,077.50 : x
2. Step 2: Convert to fraction form
   196,927.50/401,077.50 = 401,077.50/x
3. Step 3: Cross multiply
   196,927.50x = 401,077.50 × 401,077.50
4. Step 4: Simplify right side
   196,927.50x = 160,863,161,006.25
5. Step 5: Solve for x
   x = 160,863,161,006.25/196,927.50
6. Step 6: Final answer
   x = 816,864.89