Finding the Third Proportional to 72,312 and 108,082

Step by Step Solution

1. Step 1: Write the proportion equation
   72,312 : 108,082 = 108,082 : x
2. Step 2: Convert to fraction form
   72,312/108,082 = 108,082/x
3. Step 3: Cross multiply
   72,312x = 108,082 × 108,082
4. Step 4: Simplify right side
   72,312x = 11,681,718,724
5. Step 5: Solve for x
   x = 11,681,718,724/72,312
6. Step 6: Final answer
   x = 161,546.06