Finding the Third Proportional to 50,120 and 70,502

Step by Step Solution

1. Step 1: Write the proportion equation
   50,120 : 70,502 = 70,502 : x
2. Step 2: Convert to fraction form
   50,120/70,502 = 70,502/x
3. Step 3: Cross multiply
   50,120x = 70,502 × 70,502
4. Step 4: Simplify right side
   50,120x = 4,970,532,004
5. Step 5: Solve for x
   x = 4,970,532,004/50,120
6. Step 6: Final answer
   x = 99,172.63