Finding the Third Proportional to 54,042 and 86,334

Step by Step Solution

1. Step 1: Write the proportion equation
   54,042 : 86,334 = 86,334 : x
2. Step 2: Convert to fraction form
   54,042/86,334 = 86,334/x
3. Step 3: Cross multiply
   54,042x = 86,334 × 86,334
4. Step 4: Simplify right side
   54,042x = 7,453,559,556
5. Step 5: Solve for x
   x = 7,453,559,556/54,042
6. Step 6: Final answer
   x = 137,921.61