Finding the Third Proportional to 17,985.75 and 36,685.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,985.75 : 36,685.50 = 36,685.50 : x
2. Step 2: Convert to fraction form
   17,985.75/36,685.50 = 36,685.50/x
3. Step 3: Cross multiply
   17,985.75x = 36,685.50 × 36,685.50
4. Step 4: Simplify right side
   17,985.75x = 1,345,825,910.25
5. Step 5: Solve for x
   x = 1,345,825,910.25/17,985.75
6. Step 6: Final answer
   x = 74,827.34