Finding the Third Proportional to 30,519.75 and 45,749.25

Step by Step Solution

1. Step 1: Write the proportion equation
   30,519.75 : 45,749.25 = 45,749.25 : x
2. Step 2: Convert to fraction form
   30,519.75/45,749.25 = 45,749.25/x
3. Step 3: Cross multiply
   30,519.75x = 45,749.25 × 45,749.25
4. Step 4: Simplify right side
   30,519.75x = 2,092,993,875.56
5. Step 5: Solve for x
   x = 2,092,993,875.56/30,519.75
6. Step 6: Final answer
   x = 68,578.34