Finding the Third Proportional to 17,985.38 and 39,539.81

Step by Step Solution

1. Step 1: Write the proportion equation
   17,985.38 : 39,539.81 = 39,539.81 : x
2. Step 2: Convert to fraction form
   17,985.38/39,539.81 = 39,539.81/x
3. Step 3: Cross multiply
   17,985.38x = 39,539.81 × 39,539.81
4. Step 4: Simplify right side
   17,985.38x = 1,563,396,772.54
5. Step 5: Solve for x
   x = 1,563,396,772.54/17,985.38
6. Step 6: Final answer
   x = 86,926.00