Finding the Third Proportional to 20,603.63 and 30,891.75

Step by Step Solution

1. Step 1: Write the proportion equation
   20,603.63 : 30,891.75 = 30,891.75 : x
2. Step 2: Convert to fraction form
   20,603.63/30,891.75 = 30,891.75/x
3. Step 3: Cross multiply
   20,603.63x = 30,891.75 × 30,891.75
4. Step 4: Simplify right side
   20,603.63x = 954,300,218.06
5. Step 5: Solve for x
   x = 954,300,218.06/20,603.63
6. Step 6: Final answer
   x = 46,317.10