Finding the Third Proportional to 20,187 and 37,321.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,187 : 37,321.50 = 37,321.50 : x
2. Step 2: Convert to fraction form
   20,187/37,321.50 = 37,321.50/x
3. Step 3: Cross multiply
   20,187x = 37,321.50 × 37,321.50
4. Step 4: Simplify right side
   20,187x = 1,392,894,362.25
5. Step 5: Solve for x
   x = 1,392,894,362.25/20,187
6. Step 6: Final answer
   x = 68,999.57