Finding the Third Proportional to 12,807 and 30,998.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,807 : 30,998.25 = 30,998.25 : x
2. Step 2: Convert to fraction form
   12,807/30,998.25 = 30,998.25/x
3. Step 3: Cross multiply
   12,807x = 30,998.25 × 30,998.25
4. Step 4: Simplify right side
   12,807x = 960,891,503.06
5. Step 5: Solve for x
   x = 960,891,503.06/12,807
6. Step 6: Final answer
   x = 75,028.62