Finding the Third Proportional to 10,418.63 and 21,262.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,418.63 : 21,262.50 = 21,262.50 : x
2. Step 2: Convert to fraction form
   10,418.63/21,262.50 = 21,262.50/x
3. Step 3: Cross multiply
   10,418.63x = 21,262.50 × 21,262.50
4. Step 4: Simplify right side
   10,418.63x = 452,093,906.25
5. Step 5: Solve for x
   x = 452,093,906.25/10,418.63
6. Step 6: Final answer
   x = 43,392.86