Finding the Third Proportional to 21,012.75 and 30,901.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,012.75 : 30,901.50 = 30,901.50 : x
2. Step 2: Convert to fraction form
   21,012.75/30,901.50 = 30,901.50/x
3. Step 3: Cross multiply
   21,012.75x = 30,901.50 × 30,901.50
4. Step 4: Simplify right side
   21,012.75x = 954,902,702.25
5. Step 5: Solve for x
   x = 954,902,702.25/21,012.75
6. Step 6: Final answer
   x = 45,443.97