Finding the Third Proportional to 61,024.50 and 128,610

Step by Step Solution

1. Step 1: Write the proportion equation
   61,024.50 : 128,610 = 128,610 : x
2. Step 2: Convert to fraction form
   61,024.50/128,610 = 128,610/x
3. Step 3: Cross multiply
   61,024.50x = 128,610 × 128,610
4. Step 4: Simplify right side
   61,024.50x = 16,540,532,100
5. Step 5: Solve for x
   x = 16,540,532,100/61,024.50
6. Step 6: Final answer
   x = 271,047.40