Finding the Third Proportional to 602,154 and 820,170.56

Step by Step Solution

1. Step 1: Write the proportion equation
   602,154 : 820,170.56 = 820,170.56 : x
2. Step 2: Convert to fraction form
   602,154/820,170.56 = 820,170.56/x
3. Step 3: Cross multiply
   602,154x = 820,170.56 × 820,170.56
4. Step 4: Simplify right side
   602,154x = 672,679,751,591.57
5. Step 5: Solve for x
   x = 672,679,751,591.57/602,154
6. Step 6: Final answer
   x = 1,117,122.45