Finding the Third Proportional to 64,968.50 and 139,963

Step by Step Solution

1. Step 1: Write the proportion equation
   64,968.50 : 139,963 = 139,963 : x
2. Step 2: Convert to fraction form
   64,968.50/139,963 = 139,963/x
3. Step 3: Cross multiply
   64,968.50x = 139,963 × 139,963
4. Step 4: Simplify right side
   64,968.50x = 19,589,641,369
5. Step 5: Solve for x
   x = 19,589,641,369/64,968.50
6. Step 6: Final answer
   x = 301,525.22