Finding the Third Proportional to 30,279 and 45,691.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,279 : 45,691.50 = 45,691.50 : x
2. Step 2: Convert to fraction form
   30,279/45,691.50 = 45,691.50/x
3. Step 3: Cross multiply
   30,279x = 45,691.50 × 45,691.50
4. Step 4: Simplify right side
   30,279x = 2,087,713,172.25
5. Step 5: Solve for x
   x = 2,087,713,172.25/30,279
6. Step 6: Final answer
   x = 68,949.21