Finding the Third Proportional to 69,307 and 111,617

Step by Step Solution

1. Step 1: Write the proportion equation
   69,307 : 111,617 = 111,617 : x
2. Step 2: Convert to fraction form
   69,307/111,617 = 111,617/x
3. Step 3: Cross multiply
   69,307x = 111,617 × 111,617
4. Step 4: Simplify right side
   69,307x = 12,458,354,689
5. Step 5: Solve for x
   x = 12,458,354,689/69,307
6. Step 6: Final answer
   x = 179,756.08