Finding the Third Proportional to 294,923.50 and 645,042

Step by Step Solution

1. Step 1: Write the proportion equation
   294,923.50 : 645,042 = 645,042 : x
2. Step 2: Convert to fraction form
   294,923.50/645,042 = 645,042/x
3. Step 3: Cross multiply
   294,923.50x = 645,042 × 645,042
4. Step 4: Simplify right side
   294,923.50x = 416,079,181,764
5. Step 5: Solve for x
   x = 416,079,181,764/294,923.50
6. Step 6: Final answer
   x = 1,410,803.76