Finding the Third Proportional to 57,783 and 88,693.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,783 : 88,693.50 = 88,693.50 : x
2. Step 2: Convert to fraction form
   57,783/88,693.50 = 88,693.50/x
3. Step 3: Cross multiply
   57,783x = 88,693.50 × 88,693.50
4. Step 4: Simplify right side
   57,783x = 7,866,536,942.25
5. Step 5: Solve for x
   x = 7,866,536,942.25/57,783
6. Step 6: Final answer
   x = 136,139.30