Finding the Third Proportional to 86,265 and 115,931.25

Step by Step Solution

1. Step 1: Write the proportion equation
   86,265 : 115,931.25 = 115,931.25 : x
2. Step 2: Convert to fraction form
   86,265/115,931.25 = 115,931.25/x
3. Step 3: Cross multiply
   86,265x = 115,931.25 × 115,931.25
4. Step 4: Simplify right side
   86,265x = 13,440,054,726.56
5. Step 5: Solve for x
   x = 13,440,054,726.56/86,265
6. Step 6: Final answer
   x = 155,799.63