Finding the Third Proportional to 30,240 and 65,646

Step by Step Solution

1. Step 1: Write the proportion equation
   30,240 : 65,646 = 65,646 : x
2. Step 2: Convert to fraction form
   30,240/65,646 = 65,646/x
3. Step 3: Cross multiply
   30,240x = 65,646 × 65,646
4. Step 4: Simplify right side
   30,240x = 4,309,397,316
5. Step 5: Solve for x
   x = 4,309,397,316/30,240
6. Step 6: Final answer
   x = 142,506.53