Finding the Third Proportional to 64,740 and 101,728.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,740 : 101,728.50 = 101,728.50 : x
2. Step 2: Convert to fraction form
   64,740/101,728.50 = 101,728.50/x
3. Step 3: Cross multiply
   64,740x = 101,728.50 × 101,728.50
4. Step 4: Simplify right side
   64,740x = 10,348,687,712.25
5. Step 5: Solve for x
   x = 10,348,687,712.25/64,740
6. Step 6: Final answer
   x = 159,849.98