Finding the Third Proportional to 71,680.50 and 100,255.25

Step by Step Solution

1. Step 1: Write the proportion equation
   71,680.50 : 100,255.25 = 100,255.25 : x
2. Step 2: Convert to fraction form
   71,680.50/100,255.25 = 100,255.25/x
3. Step 3: Cross multiply
   71,680.50x = 100,255.25 × 100,255.25
4. Step 4: Simplify right side
   71,680.50x = 10,051,115,152.56
5. Step 5: Solve for x
   x = 10,051,115,152.56/71,680.50
6. Step 6: Final answer
   x = 140,221.05