Finding the Third Proportional to 300,844.50 and 660,730.50

Step by Step Solution

1. Step 1: Write the proportion equation
   300,844.50 : 660,730.50 = 660,730.50 : x
2. Step 2: Convert to fraction form
   300,844.50/660,730.50 = 660,730.50/x
3. Step 3: Cross multiply
   300,844.50x = 660,730.50 × 660,730.50
4. Step 4: Simplify right side
   300,844.50x = 436,564,793,630.25
5. Step 5: Solve for x
   x = 436,564,793,630.25/300,844.50
6. Step 6: Final answer
   x = 1,451,131.04