Finding the Third Proportional to 139,009 and 297,701

Step by Step Solution

1. Step 1: Write the proportion equation
   139,009 : 297,701 = 297,701 : x
2. Step 2: Convert to fraction form
   139,009/297,701 = 297,701/x
3. Step 3: Cross multiply
   139,009x = 297,701 × 297,701
4. Step 4: Simplify right side
   139,009x = 88,625,885,401
5. Step 5: Solve for x
   x = 88,625,885,401/139,009
6. Step 6: Final answer
   x = 637,555.02