Finding the Third Proportional to 108,978 and 147,915

Step by Step Solution

1. Step 1: Write the proportion equation
   108,978 : 147,915 = 147,915 : x
2. Step 2: Convert to fraction form
   108,978/147,915 = 147,915/x
3. Step 3: Cross multiply
   108,978x = 147,915 × 147,915
4. Step 4: Simplify right side
   108,978x = 21,878,847,225
5. Step 5: Solve for x
   x = 21,878,847,225/108,978
6. Step 6: Final answer
   x = 200,763.89