Finding the Third Proportional to 57,693.50 and 87,308.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,693.50 : 87,308.50 = 87,308.50 : x
2. Step 2: Convert to fraction form
   57,693.50/87,308.50 = 87,308.50/x
3. Step 3: Cross multiply
   57,693.50x = 87,308.50 × 87,308.50
4. Step 4: Simplify right side
   57,693.50x = 7,622,774,172.25
5. Step 5: Solve for x
   x = 7,622,774,172.25/57,693.50
6. Step 6: Final answer
   x = 132,125.36