Finding the Third Proportional to 50,419 and 70,661.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,419 : 70,661.50 = 70,661.50 : x
2. Step 2: Convert to fraction form
   50,419/70,661.50 = 70,661.50/x
3. Step 3: Cross multiply
   50,419x = 70,661.50 × 70,661.50
4. Step 4: Simplify right side
   50,419x = 4,993,047,582.25
5. Step 5: Solve for x
   x = 4,993,047,582.25/50,419
6. Step 6: Final answer
   x = 99,031.07