Finding the Third Proportional to 18,670 and 39,068.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,670 : 39,068.50 = 39,068.50 : x
2. Step 2: Convert to fraction form
   18,670/39,068.50 = 39,068.50/x
3. Step 3: Cross multiply
   18,670x = 39,068.50 × 39,068.50
4. Step 4: Simplify right side
   18,670x = 1,526,347,692.25
5. Step 5: Solve for x
   x = 1,526,347,692.25/18,670
6. Step 6: Final answer
   x = 81,754.03