Finding the Third Proportional to 50,439 and 70,698

Step by Step Solution

1. Step 1: Write the proportion equation
   50,439 : 70,698 = 70,698 : x
2. Step 2: Convert to fraction form
   50,439/70,698 = 70,698/x
3. Step 3: Cross multiply
   50,439x = 70,698 × 70,698
4. Step 4: Simplify right side
   50,439x = 4,998,207,204
5. Step 5: Solve for x
   x = 4,998,207,204/50,439
6. Step 6: Final answer
   x = 99,094.10