Finding the Third Proportional to 30,162.38 and 65,518.88

Step by Step Solution

1. Step 1: Write the proportion equation
   30,162.38 : 65,518.88 = 65,518.88 : x
2. Step 2: Convert to fraction form
   30,162.38/65,518.88 = 65,518.88/x
3. Step 3: Cross multiply
   30,162.38x = 65,518.88 × 65,518.88
4. Step 4: Simplify right side
   30,162.38x = 4,292,722,981.27
5. Step 5: Solve for x
   x = 4,292,722,981.27/30,162.38
6. Step 6: Final answer
   x = 142,320.46