Finding the Third Proportional to 67,312 and 105,336

Step by Step Solution

1. Step 1: Write the proportion equation
   67,312 : 105,336 = 105,336 : x
2. Step 2: Convert to fraction form
   67,312/105,336 = 105,336/x
3. Step 3: Cross multiply
   67,312x = 105,336 × 105,336
4. Step 4: Simplify right side
   67,312x = 11,095,672,896
5. Step 5: Solve for x
   x = 11,095,672,896/67,312
6. Step 6: Final answer
   x = 164,839.45