Finding the Third Proportional to 67,312 and 105,600

Step by Step Solution

1. Step 1: Write the proportion equation
   67,312 : 105,600 = 105,600 : x
2. Step 2: Convert to fraction form
   67,312/105,600 = 105,600/x
3. Step 3: Cross multiply
   67,312x = 105,600 × 105,600
4. Step 4: Simplify right side
   67,312x = 11,151,360,000
5. Step 5: Solve for x
   x = 11,151,360,000/67,312
6. Step 6: Final answer
   x = 165,666.75