Finding the Third Proportional to 64,432 and 139,932

Step by Step Solution

1. Step 1: Write the proportion equation
   64,432 : 139,932 = 139,932 : x
2. Step 2: Convert to fraction form
   64,432/139,932 = 139,932/x
3. Step 3: Cross multiply
   64,432x = 139,932 × 139,932
4. Step 4: Simplify right side
   64,432x = 19,580,964,624
5. Step 5: Solve for x
   x = 19,580,964,624/64,432
6. Step 6: Final answer
   x = 303,901.24