Finding the Third Proportional to 12,806.25 and 29,636.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,806.25 : 29,636.25 = 29,636.25 : x
2. Step 2: Convert to fraction form
   12,806.25/29,636.25 = 29,636.25/x
3. Step 3: Cross multiply
   12,806.25x = 29,636.25 × 29,636.25
4. Step 4: Simplify right side
   12,806.25x = 878,307,314.06
5. Step 5: Solve for x
   x = 878,307,314.06/12,806.25
6. Step 6: Final answer
   x = 68,584.27