Finding the Third Proportional to 404,964 and 818,493.75

Step by Step Solution

1. Step 1: Write the proportion equation
   404,964 : 818,493.75 = 818,493.75 : x
2. Step 2: Convert to fraction form
   404,964/818,493.75 = 818,493.75/x
3. Step 3: Cross multiply
   404,964x = 818,493.75 × 818,493.75
4. Step 4: Simplify right side
   404,964x = 669,932,018,789.06
5. Step 5: Solve for x
   x = 669,932,018,789.06/404,964
6. Step 6: Final answer
   x = 1,654,300.18