Finding the Third Proportional to 63,499.50 and 138,807

Step by Step Solution

1. Step 1: Write the proportion equation
   63,499.50 : 138,807 = 138,807 : x
2. Step 2: Convert to fraction form
   63,499.50/138,807 = 138,807/x
3. Step 3: Cross multiply
   63,499.50x = 138,807 × 138,807
4. Step 4: Simplify right side
   63,499.50x = 19,267,383,249
5. Step 5: Solve for x
   x = 19,267,383,249/63,499.50
6. Step 6: Final answer
   x = 303,425.75