Finding the Third Proportional to 50,388 and 70,632

Step by Step Solution

1. Step 1: Write the proportion equation
   50,388 : 70,632 = 70,632 : x
2. Step 2: Convert to fraction form
   50,388/70,632 = 70,632/x
3. Step 3: Cross multiply
   50,388x = 70,632 × 70,632
4. Step 4: Simplify right side
   50,388x = 4,988,879,424
5. Step 5: Solve for x
   x = 4,988,879,424/50,388
6. Step 6: Final answer
   x = 99,009.28