Finding the Third Proportional to 56,286 and 85,589.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,286 : 85,589.50 = 85,589.50 : x
2. Step 2: Convert to fraction form
   56,286/85,589.50 = 85,589.50/x
3. Step 3: Cross multiply
   56,286x = 85,589.50 × 85,589.50
4. Step 4: Simplify right side
   56,286x = 7,325,562,510.25
5. Step 5: Solve for x
   x = 7,325,562,510.25/56,286
6. Step 6: Final answer
   x = 130,148.93