Finding the Third Proportional to 30,009.50 and 65,108

Step by Step Solution

1. Step 1: Write the proportion equation
   30,009.50 : 65,108 = 65,108 : x
2. Step 2: Convert to fraction form
   30,009.50/65,108 = 65,108/x
3. Step 3: Cross multiply
   30,009.50x = 65,108 × 65,108
4. Step 4: Simplify right side
   30,009.50x = 4,239,051,664
5. Step 5: Solve for x
   x = 4,239,051,664/30,009.50
6. Step 6: Final answer
   x = 141,256.99