Finding the Third Proportional to 16,885.50 and 39,090.19

Step by Step Solution

1. Step 1: Write the proportion equation
   16,885.50 : 39,090.19 = 39,090.19 : x
2. Step 2: Convert to fraction form
   16,885.50/39,090.19 = 39,090.19/x
3. Step 3: Cross multiply
   16,885.50x = 39,090.19 × 39,090.19
4. Step 4: Simplify right side
   16,885.50x = 1,528,042,758.79
5. Step 5: Solve for x
   x = 1,528,042,758.79/16,885.50
6. Step 6: Final answer
   x = 90,494.37