Finding the Third Proportional to 74,570 and 111,915

Step by Step Solution

1. Step 1: Write the proportion equation
   74,570 : 111,915 = 111,915 : x
2. Step 2: Convert to fraction form
   74,570/111,915 = 111,915/x
3. Step 3: Cross multiply
   74,570x = 111,915 × 111,915
4. Step 4: Simplify right side
   74,570x = 12,524,967,225
5. Step 5: Solve for x
   x = 12,524,967,225/74,570
6. Step 6: Final answer
   x = 167,962.55