Finding the Third Proportional to 64,695.38 and 140,781.38

Step by Step Solution

1. Step 1: Write the proportion equation
   64,695.38 : 140,781.38 = 140,781.38 : x
2. Step 2: Convert to fraction form
   64,695.38/140,781.38 = 140,781.38/x
3. Step 3: Cross multiply
   64,695.38x = 140,781.38 × 140,781.38
4. Step 4: Simplify right side
   64,695.38x = 19,819,395,546.89
5. Step 5: Solve for x
   x = 19,819,395,546.89/64,695.38
6. Step 6: Final answer
   x = 306,349.50