Finding the Third Proportional to 602,791.88 and 820,899.56

Step by Step Solution

1. Step 1: Write the proportion equation
   602,791.88 : 820,899.56 = 820,899.56 : x
2. Step 2: Convert to fraction form
   602,791.88/820,899.56 = 820,899.56/x
3. Step 3: Cross multiply
   602,791.88x = 820,899.56 × 820,899.56
4. Step 4: Simplify right side
   602,791.88x = 673,876,091,712.69
5. Step 5: Solve for x
   x = 673,876,091,712.69/602,791.88
6. Step 6: Final answer
   x = 1,117,924.97