Finding the Third Proportional to 63,618 and 100,720.50

Step by Step Solution

1. Step 1: Write the proportion equation
   63,618 : 100,720.50 = 100,720.50 : x
2. Step 2: Convert to fraction form
   63,618/100,720.50 = 100,720.50/x
3. Step 3: Cross multiply
   63,618x = 100,720.50 × 100,720.50
4. Step 4: Simplify right side
   63,618x = 10,144,619,120.25
5. Step 5: Solve for x
   x = 10,144,619,120.25/63,618
6. Step 6: Final answer
   x = 159,461.46