Finding the Third Proportional to 12,772.69 and 28,317.09

Step by Step Solution

1. Step 1: Write the proportion equation
   12,772.69 : 28,317.09 = 28,317.09 : x
2. Step 2: Convert to fraction form
   12,772.69/28,317.09 = 28,317.09/x
3. Step 3: Cross multiply
   12,772.69x = 28,317.09 × 28,317.09
4. Step 4: Simplify right side
   12,772.69x = 801,857,798.45
5. Step 5: Solve for x
   x = 801,857,798.45/12,772.69
6. Step 6: Final answer
   x = 62,779.10