Finding the Third Proportional to 17,985 and 38,330.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,985 : 38,330.50 = 38,330.50 : x
2. Step 2: Convert to fraction form
   17,985/38,330.50 = 38,330.50/x
3. Step 3: Cross multiply
   17,985x = 38,330.50 × 38,330.50
4. Step 4: Simplify right side
   17,985x = 1,469,227,230.25
5. Step 5: Solve for x
   x = 1,469,227,230.25/17,985
6. Step 6: Final answer
   x = 81,691.81