Finding the Third Proportional to 62,608.50 and 128,097

Step by Step Solution

1. Step 1: Write the proportion equation
   62,608.50 : 128,097 = 128,097 : x
2. Step 2: Convert to fraction form
   62,608.50/128,097 = 128,097/x
3. Step 3: Cross multiply
   62,608.50x = 128,097 × 128,097
4. Step 4: Simplify right side
   62,608.50x = 16,408,841,409
5. Step 5: Solve for x
   x = 16,408,841,409/62,608.50
6. Step 6: Final answer
   x = 262,086.48