Finding the Third Proportional to 66,629.25 and 86,514.75

Step by Step Solution

1. Step 1: Write the proportion equation
   66,629.25 : 86,514.75 = 86,514.75 : x
2. Step 2: Convert to fraction form
   66,629.25/86,514.75 = 86,514.75/x
3. Step 3: Cross multiply
   66,629.25x = 86,514.75 × 86,514.75
4. Step 4: Simplify right side
   66,629.25x = 7,484,801,967.56
5. Step 5: Solve for x
   x = 7,484,801,967.56/66,629.25
6. Step 6: Final answer
   x = 112,335.08