Finding the Third Proportional to 81,601.50 and 124,830

Step by Step Solution

1. Step 1: Write the proportion equation
   81,601.50 : 124,830 = 124,830 : x
2. Step 2: Convert to fraction form
   81,601.50/124,830 = 124,830/x
3. Step 3: Cross multiply
   81,601.50x = 124,830 × 124,830
4. Step 4: Simplify right side
   81,601.50x = 15,582,528,900
5. Step 5: Solve for x
   x = 15,582,528,900/81,601.50
6. Step 6: Final answer
   x = 190,958.85