Finding the Third Proportional to 660,270 and 1,372,200

Step by Step Solution

1. Step 1: Write the proportion equation
   660,270 : 1,372,200 = 1,372,200 : x
2. Step 2: Convert to fraction form
   660,270/1,372,200 = 1,372,200/x
3. Step 3: Cross multiply
   660,270x = 1,372,200 × 1,372,200
4. Step 4: Simplify right side
   660,270x = 1,882,932,840,000
5. Step 5: Solve for x
   x = 1,882,932,840,000/660,270
6. Step 6: Final answer
   x = 2,851,761.92