Finding the Third Proportional to 602,162 and 820,181

Step by Step Solution

1. Step 1: Write the proportion equation
   602,162 : 820,181 = 820,181 : x
2. Step 2: Convert to fraction form
   602,162/820,181 = 820,181/x
3. Step 3: Cross multiply
   602,162x = 820,181 × 820,181
4. Step 4: Simplify right side
   602,162x = 672,696,872,761
5. Step 5: Solve for x
   x = 672,696,872,761/602,162
6. Step 6: Final answer
   x = 1,117,136.04