Finding the Third Proportional to 300,870.75 and 660,793.50

Step by Step Solution

1. Step 1: Write the proportion equation
   300,870.75 : 660,793.50 = 660,793.50 : x
2. Step 2: Convert to fraction form
   300,870.75/660,793.50 = 660,793.50/x
3. Step 3: Cross multiply
   300,870.75x = 660,793.50 × 660,793.50
4. Step 4: Simplify right side
   300,870.75x = 436,648,049,642.25
5. Step 5: Solve for x
   x = 436,648,049,642.25/300,870.75
6. Step 6: Final answer
   x = 1,451,281.16