Finding the Third Proportional to 30,145.50 and 65,646.28

Step by Step Solution

1. Step 1: Write the proportion equation
   30,145.50 : 65,646.28 = 65,646.28 : x
2. Step 2: Convert to fraction form
   30,145.50/65,646.28 = 65,646.28/x
3. Step 3: Cross multiply
   30,145.50x = 65,646.28 × 65,646.28
4. Step 4: Simplify right side
   30,145.50x = 4,309,434,241.95
5. Step 5: Solve for x
   x = 4,309,434,241.95/30,145.50
6. Step 6: Final answer
   x = 142,954.48