Finding the Third Proportional to 429,300 and 660,150

Step by Step Solution

1. Step 1: Write the proportion equation
   429,300 : 660,150 = 660,150 : x
2. Step 2: Convert to fraction form
   429,300/660,150 = 660,150/x
3. Step 3: Cross multiply
   429,300x = 660,150 × 660,150
4. Step 4: Simplify right side
   429,300x = 435,798,022,500
5. Step 5: Solve for x
   x = 435,798,022,500/429,300
6. Step 6: Final answer
   x = 1,015,136.32