Finding the Third Proportional to 54,362 and 86,484

Step by Step Solution

1. Step 1: Write the proportion equation
   54,362 : 86,484 = 86,484 : x
2. Step 2: Convert to fraction form
   54,362/86,484 = 86,484/x
3. Step 3: Cross multiply
   54,362x = 86,484 × 86,484
4. Step 4: Simplify right side
   54,362x = 7,479,482,256
5. Step 5: Solve for x
   x = 7,479,482,256/54,362
6. Step 6: Final answer
   x = 137,586.59