Finding the Third Proportional to 196,164.50 and 415,868.50

Step by Step Solution

1. Step 1: Write the proportion equation
   196,164.50 : 415,868.50 = 415,868.50 : x
2. Step 2: Convert to fraction form
   196,164.50/415,868.50 = 415,868.50/x
3. Step 3: Cross multiply
   196,164.50x = 415,868.50 × 415,868.50
4. Step 4: Simplify right side
   196,164.50x = 172,946,609,292.25
5. Step 5: Solve for x
   x = 172,946,609,292.25/196,164.50
6. Step 6: Final answer
   x = 881,640.71