Finding the Third Proportional to 30,250.50 and 45,405.75

Step by Step Solution

1. Step 1: Write the proportion equation
   30,250.50 : 45,405.75 = 45,405.75 : x
2. Step 2: Convert to fraction form
   30,250.50/45,405.75 = 45,405.75/x
3. Step 3: Cross multiply
   30,250.50x = 45,405.75 × 45,405.75
4. Step 4: Simplify right side
   30,250.50x = 2,061,682,133.06
5. Step 5: Solve for x
   x = 2,061,682,133.06/30,250.50
6. Step 6: Final answer
   x = 68,153.65