Finding the Third Proportional to 64,796 and 139,434

Step by Step Solution

1. Step 1: Write the proportion equation
   64,796 : 139,434 = 139,434 : x
2. Step 2: Convert to fraction form
   64,796/139,434 = 139,434/x
3. Step 3: Cross multiply
   64,796x = 139,434 × 139,434
4. Step 4: Simplify right side
   64,796x = 19,441,840,356
5. Step 5: Solve for x
   x = 19,441,840,356/64,796
6. Step 6: Final answer
   x = 300,046.92