Finding the Third Proportional to 57,064 and 85,768.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,064 : 85,768.50 = 85,768.50 : x
2. Step 2: Convert to fraction form
   57,064/85,768.50 = 85,768.50/x
3. Step 3: Cross multiply
   57,064x = 85,768.50 × 85,768.50
4. Step 4: Simplify right side
   57,064x = 7,356,235,592.25
5. Step 5: Solve for x
   x = 7,356,235,592.25/57,064
6. Step 6: Final answer
   x = 128,912.02