Finding the Third Proportional to 57,586.78 and 87,185.95

Step by Step Solution

1. Step 1: Write the proportion equation
   57,586.78 : 87,185.95 = 87,185.95 : x
2. Step 2: Convert to fraction form
   57,586.78/87,185.95 = 87,185.95/x
3. Step 3: Cross multiply
   57,586.78x = 87,185.95 × 87,185.95
4. Step 4: Simplify right side
   57,586.78x = 7,601,390,422.31
5. Step 5: Solve for x
   x = 7,601,390,422.31/57,586.78
6. Step 6: Final answer
   x = 131,998.88