Finding the Third Proportional to 666,430 and 1,451,180

Step by Step Solution

1. Step 1: Write the proportion equation
   666,430 : 1,451,180 = 1,451,180 : x
2. Step 2: Convert to fraction form
   666,430/1,451,180 = 1,451,180/x
3. Step 3: Cross multiply
   666,430x = 1,451,180 × 1,451,180
4. Step 4: Simplify right side
   666,430x = 2,105,923,392,400
5. Step 5: Solve for x
   x = 2,105,923,392,400/666,430
6. Step 6: Final answer
   x = 3,160,006.89