Finding the Third Proportional to 64,968 and 139,607

Step by Step Solution

1. Step 1: Write the proportion equation
   64,968 : 139,607 = 139,607 : x
2. Step 2: Convert to fraction form
   64,968/139,607 = 139,607/x
3. Step 3: Cross multiply
   64,968x = 139,607 × 139,607
4. Step 4: Simplify right side
   64,968x = 19,490,114,449
5. Step 5: Solve for x
   x = 19,490,114,449/64,968
6. Step 6: Final answer
   x = 299,995.60