Finding the Third Proportional to 64,577.25 and 86,609.25

Step by Step Solution

1. Step 1: Write the proportion equation
   64,577.25 : 86,609.25 = 86,609.25 : x
2. Step 2: Convert to fraction form
   64,577.25/86,609.25 = 86,609.25/x
3. Step 3: Cross multiply
   64,577.25x = 86,609.25 × 86,609.25
4. Step 4: Simplify right side
   64,577.25x = 7,501,162,185.56
5. Step 5: Solve for x
   x = 7,501,162,185.56/64,577.25
6. Step 6: Final answer
   x = 116,157.97