Finding the Third Proportional to 338,643.50 and 461,248

Step by Step Solution

1. Step 1: Write the proportion equation
   338,643.50 : 461,248 = 461,248 : x
2. Step 2: Convert to fraction form
   338,643.50/461,248 = 461,248/x
3. Step 3: Cross multiply
   338,643.50x = 461,248 × 461,248
4. Step 4: Simplify right side
   338,643.50x = 212,749,717,504
5. Step 5: Solve for x
   x = 212,749,717,504/338,643.50
6. Step 6: Final answer
   x = 628,240.96