Finding the Third Proportional to 138,099 and 300,801

Step by Step Solution

1. Step 1: Write the proportion equation
   138,099 : 300,801 = 300,801 : x
2. Step 2: Convert to fraction form
   138,099/300,801 = 300,801/x
3. Step 3: Cross multiply
   138,099x = 300,801 × 300,801
4. Step 4: Simplify right side
   138,099x = 90,481,241,601
5. Step 5: Solve for x
   x = 90,481,241,601/138,099
6. Step 6: Final answer
   x = 655,191.14