Finding the Third Proportional to 12,872.25 and 30,084.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,872.25 : 30,084.75 = 30,084.75 : x
2. Step 2: Convert to fraction form
   12,872.25/30,084.75 = 30,084.75/x
3. Step 3: Cross multiply
   12,872.25x = 30,084.75 × 30,084.75
4. Step 4: Simplify right side
   12,872.25x = 905,092,182.56
5. Step 5: Solve for x
   x = 905,092,182.56/12,872.25
6. Step 6: Final answer
   x = 70,313.44