Finding the Third Proportional to 139,019 and 297,721

Step by Step Solution

1. Step 1: Write the proportion equation
   139,019 : 297,721 = 297,721 : x
2. Step 2: Convert to fraction form
   139,019/297,721 = 297,721/x
3. Step 3: Cross multiply
   139,019x = 297,721 × 297,721
4. Step 4: Simplify right side
   139,019x = 88,637,793,841
5. Step 5: Solve for x
   x = 88,637,793,841/139,019
6. Step 6: Final answer
   x = 637,594.82