Finding the Third Proportional to 138,101 and 300,805

Step by Step Solution

1. Step 1: Write the proportion equation
   138,101 : 300,805 = 300,805 : x
2. Step 2: Convert to fraction form
   138,101/300,805 = 300,805/x
3. Step 3: Cross multiply
   138,101x = 300,805 × 300,805
4. Step 4: Simplify right side
   138,101x = 90,483,648,025
5. Step 5: Solve for x
   x = 90,483,648,025/138,101
6. Step 6: Final answer
   x = 655,199.08