Finding the Third Proportional to 12,636 and 19,822.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,636 : 19,822.22 = 19,822.22 : x
2. Step 2: Convert to fraction form
   12,636/19,822.22 = 19,822.22/x
3. Step 3: Cross multiply
   12,636x = 19,822.22 × 19,822.22
4. Step 4: Simplify right side
   12,636x = 392,920,356.17
5. Step 5: Solve for x
   x = 392,920,356.17/12,636
6. Step 6: Final answer
   x = 31,095.31