Finding the Third Proportional to 139,066 and 323,517

Step by Step Solution

1. Step 1: Write the proportion equation
   139,066 : 323,517 = 323,517 : x
2. Step 2: Convert to fraction form
   139,066/323,517 = 323,517/x
3. Step 3: Cross multiply
   139,066x = 323,517 × 323,517
4. Step 4: Simplify right side
   139,066x = 104,663,249,289
5. Step 5: Solve for x
   x = 104,663,249,289/139,066
6. Step 6: Final answer
   x = 752,615.66