Finding the Third Proportional to 79,479 and 111,397.50

Step by Step Solution

1. Step 1: Write the proportion equation
   79,479 : 111,397.50 = 111,397.50 : x
2. Step 2: Convert to fraction form
   79,479/111,397.50 = 111,397.50/x
3. Step 3: Cross multiply
   79,479x = 111,397.50 × 111,397.50
4. Step 4: Simplify right side
   79,479x = 12,409,403,006.25
5. Step 5: Solve for x
   x = 12,409,403,006.25/79,479
6. Step 6: Final answer
   x = 156,134.36