Finding the Third Proportional to 64,828.25 and 87,393.25

Step by Step Solution

1. Step 1: Write the proportion equation
   64,828.25 : 87,393.25 = 87,393.25 : x
2. Step 2: Convert to fraction form
   64,828.25/87,393.25 = 87,393.25/x
3. Step 3: Cross multiply
   64,828.25x = 87,393.25 × 87,393.25
4. Step 4: Simplify right side
   64,828.25x = 7,637,580,145.56
5. Step 5: Solve for x
   x = 7,637,580,145.56/64,828.25
6. Step 6: Final answer
   x = 117,812.53