Finding the Third Proportional to 67,749 and 100,640.25

Step by Step Solution

1. Step 1: Write the proportion equation
   67,749 : 100,640.25 = 100,640.25 : x
2. Step 2: Convert to fraction form
   67,749/100,640.25 = 100,640.25/x
3. Step 3: Cross multiply
   67,749x = 100,640.25 × 100,640.25
4. Step 4: Simplify right side
   67,749x = 10,128,459,920.06
5. Step 5: Solve for x
   x = 10,128,459,920.06/67,749
6. Step 6: Final answer
   x = 149,499.77