Finding the Third Proportional to 18,306 and 38,758.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,306 : 38,758.50 = 38,758.50 : x
2. Step 2: Convert to fraction form
   18,306/38,758.50 = 38,758.50/x
3. Step 3: Cross multiply
   18,306x = 38,758.50 × 38,758.50
4. Step 4: Simplify right side
   18,306x = 1,502,221,322.25
5. Step 5: Solve for x
   x = 1,502,221,322.25/18,306
6. Step 6: Final answer
   x = 82,061.69