Finding the Third Proportional to 366,705 and 812,142

Step by Step Solution

1. Step 1: Write the proportion equation
   366,705 : 812,142 = 812,142 : x
2. Step 2: Convert to fraction form
   366,705/812,142 = 812,142/x
3. Step 3: Cross multiply
   366,705x = 812,142 × 812,142
4. Step 4: Simplify right side
   366,705x = 659,574,628,164
5. Step 5: Solve for x
   x = 659,574,628,164/366,705
6. Step 6: Final answer
   x = 1,798,651.85