Finding the Third Proportional to 79,728 and 111,460.50

Step by Step Solution

1. Step 1: Write the proportion equation
   79,728 : 111,460.50 = 111,460.50 : x
2. Step 2: Convert to fraction form
   79,728/111,460.50 = 111,460.50/x
3. Step 3: Cross multiply
   79,728x = 111,460.50 × 111,460.50
4. Step 4: Simplify right side
   79,728x = 12,423,443,060.25
5. Step 5: Solve for x
   x = 12,423,443,060.25/79,728
6. Step 6: Final answer
   x = 155,822.84