Finding the Third Proportional to 64,727.25 and 87,450.75

Step by Step Solution

1. Step 1: Write the proportion equation
   64,727.25 : 87,450.75 = 87,450.75 : x
2. Step 2: Convert to fraction form
   64,727.25/87,450.75 = 87,450.75/x
3. Step 3: Cross multiply
   64,727.25x = 87,450.75 × 87,450.75
4. Step 4: Simplify right side
   64,727.25x = 7,647,633,675.56
5. Step 5: Solve for x
   x = 7,647,633,675.56/64,727.25
6. Step 6: Final answer
   x = 118,151.69