Finding the Third Proportional to 64,395.50 and 139,875

Step by Step Solution

1. Step 1: Write the proportion equation
   64,395.50 : 139,875 = 139,875 : x
2. Step 2: Convert to fraction form
   64,395.50/139,875 = 139,875/x
3. Step 3: Cross multiply
   64,395.50x = 139,875 × 139,875
4. Step 4: Simplify right side
   64,395.50x = 19,565,015,625
5. Step 5: Solve for x
   x = 19,565,015,625/64,395.50
6. Step 6: Final answer
   x = 303,825.82