Finding the Third Proportional to 71,661.50 and 100,229

Step by Step Solution

1. Step 1: Write the proportion equation
   71,661.50 : 100,229 = 100,229 : x
2. Step 2: Convert to fraction form
   71,661.50/100,229 = 100,229/x
3. Step 3: Cross multiply
   71,661.50x = 100,229 × 100,229
4. Step 4: Simplify right side
   71,661.50x = 10,045,852,441
5. Step 5: Solve for x
   x = 10,045,852,441/71,661.50
6. Step 6: Final answer
   x = 140,184.79