Finding the Third Proportional to 63,270 and 138,199.50

Step by Step Solution

1. Step 1: Write the proportion equation
   63,270 : 138,199.50 = 138,199.50 : x
2. Step 2: Convert to fraction form
   63,270/138,199.50 = 138,199.50/x
3. Step 3: Cross multiply
   63,270x = 138,199.50 × 138,199.50
4. Step 4: Simplify right side
   63,270x = 19,099,101,800.25
5. Step 5: Solve for x
   x = 19,099,101,800.25/63,270
6. Step 6: Final answer
   x = 301,866.63