Finding the Third Proportional to 301,656 and 632,688

Step by Step Solution

1. Step 1: Write the proportion equation
   301,656 : 632,688 = 632,688 : x
2. Step 2: Convert to fraction form
   301,656/632,688 = 632,688/x
3. Step 3: Cross multiply
   301,656x = 632,688 × 632,688
4. Step 4: Simplify right side
   301,656x = 400,294,105,344
5. Step 5: Solve for x
   x = 400,294,105,344/301,656
6. Step 6: Final answer
   x = 1,326,988.71