Finding the Third Proportional to 300,307.50 and 404,493.75

Step by Step Solution

1. Step 1: Write the proportion equation
   300,307.50 : 404,493.75 = 404,493.75 : x
2. Step 2: Convert to fraction form
   300,307.50/404,493.75 = 404,493.75/x
3. Step 3: Cross multiply
   300,307.50x = 404,493.75 × 404,493.75
4. Step 4: Simplify right side
   300,307.50x = 163,615,193,789.06
5. Step 5: Solve for x
   x = 163,615,193,789.06/300,307.50
6. Step 6: Final answer
   x = 544,825.53