Finding the Third Proportional to 30,145.50 and 65,480.63

Step by Step Solution

1. Step 1: Write the proportion equation
   30,145.50 : 65,480.63 = 65,480.63 : x
2. Step 2: Convert to fraction form
   30,145.50/65,480.63 = 65,480.63/x
3. Step 3: Cross multiply
   30,145.50x = 65,480.63 × 65,480.63
4. Step 4: Simplify right side
   30,145.50x = 4,287,712,250.39
5. Step 5: Solve for x
   x = 4,287,712,250.39/30,145.50
6. Step 6: Final answer
   x = 142,233.91