Finding the Third Proportional to 40,123.25 and 86,671

Step by Step Solution

1. Step 1: Write the proportion equation
   40,123.25 : 86,671 = 86,671 : x
2. Step 2: Convert to fraction form
   40,123.25/86,671 = 86,671/x
3. Step 3: Cross multiply
   40,123.25x = 86,671 × 86,671
4. Step 4: Simplify right side
   40,123.25x = 7,511,862,241
5. Step 5: Solve for x
   x = 7,511,862,241/40,123.25
6. Step 6: Final answer
   x = 187,219.69