Finding the Third Proportional to 63,616.50 and 138,195

Step by Step Solution

1. Step 1: Write the proportion equation
   63,616.50 : 138,195 = 138,195 : x
2. Step 2: Convert to fraction form
   63,616.50/138,195 = 138,195/x
3. Step 3: Cross multiply
   63,616.50x = 138,195 × 138,195
4. Step 4: Simplify right side
   63,616.50x = 19,097,858,025
5. Step 5: Solve for x
   x = 19,097,858,025/63,616.50
6. Step 6: Final answer
   x = 300,202.90