Finding the Third Proportional to 64,614 and 139,947

Step by Step Solution

1. Step 1: Write the proportion equation
   64,614 : 139,947 = 139,947 : x
2. Step 2: Convert to fraction form
   64,614/139,947 = 139,947/x
3. Step 3: Cross multiply
   64,614x = 139,947 × 139,947
4. Step 4: Simplify right side
   64,614x = 19,585,162,809
5. Step 5: Solve for x
   x = 19,585,162,809/64,614
6. Step 6: Final answer
   x = 303,110.21