Finding the Third Proportional to 301,529.50 and 627,870.50

Step by Step Solution

1. Step 1: Write the proportion equation
   301,529.50 : 627,870.50 = 627,870.50 : x
2. Step 2: Convert to fraction form
   301,529.50/627,870.50 = 627,870.50/x
3. Step 3: Cross multiply
   301,529.50x = 627,870.50 × 627,870.50
4. Step 4: Simplify right side
   301,529.50x = 394,221,364,770.25
5. Step 5: Solve for x
   x = 394,221,364,770.25/301,529.50
6. Step 6: Final answer
   x = 1,307,405.63