Finding the Third Proportional to 79,474 and 111,389

Step by Step Solution

1. Step 1: Write the proportion equation
   79,474 : 111,389 = 111,389 : x
2. Step 2: Convert to fraction form
   79,474/111,389 = 111,389/x
3. Step 3: Cross multiply
   79,474x = 111,389 × 111,389
4. Step 4: Simplify right side
   79,474x = 12,407,509,321
5. Step 5: Solve for x
   x = 12,407,509,321/79,474
6. Step 6: Final answer
   x = 156,120.36