Finding the Third Proportional to 57,133 and 87,643.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,133 : 87,643.50 = 87,643.50 : x
2. Step 2: Convert to fraction form
   57,133/87,643.50 = 87,643.50/x
3. Step 3: Cross multiply
   57,133x = 87,643.50 × 87,643.50
4. Step 4: Simplify right side
   57,133x = 7,681,383,092.25
5. Step 5: Solve for x
   x = 7,681,383,092.25/57,133
6. Step 6: Final answer
   x = 134,447.40