Finding the Third Proportional to 79,470 and 111,393

Step by Step Solution

1. Step 1: Write the proportion equation
   79,470 : 111,393 = 111,393 : x
2. Step 2: Convert to fraction form
   79,470/111,393 = 111,393/x
3. Step 3: Cross multiply
   79,470x = 111,393 × 111,393
4. Step 4: Simplify right side
   79,470x = 12,408,400,449
5. Step 5: Solve for x
   x = 12,408,400,449/79,470
6. Step 6: Final answer
   x = 156,139.43