Finding the Third Proportional to 404,968 and 628,675.50

Step by Step Solution

1. Step 1: Write the proportion equation
   404,968 : 628,675.50 = 628,675.50 : x
2. Step 2: Convert to fraction form
   404,968/628,675.50 = 628,675.50/x
3. Step 3: Cross multiply
   404,968x = 628,675.50 × 628,675.50
4. Step 4: Simplify right side
   404,968x = 395,232,884,300.25
5. Step 5: Solve for x
   x = 395,232,884,300.25/404,968
6. Step 6: Final answer
   x = 975,960.78