Finding the Third Proportional to 74,345 and 111,540

Step by Step Solution

1. Step 1: Write the proportion equation
   74,345 : 111,540 = 111,540 : x
2. Step 2: Convert to fraction form
   74,345/111,540 = 111,540/x
3. Step 3: Cross multiply
   74,345x = 111,540 × 111,540
4. Step 4: Simplify right side
   74,345x = 12,441,171,600
5. Step 5: Solve for x
   x = 12,441,171,600/74,345
6. Step 6: Final answer
   x = 167,343.76