Finding the Third Proportional to 39,813 and 87,280.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,813 : 87,280.50 = 87,280.50 : x
2. Step 2: Convert to fraction form
   39,813/87,280.50 = 87,280.50/x
3. Step 3: Cross multiply
   39,813x = 87,280.50 × 87,280.50
4. Step 4: Simplify right side
   39,813x = 7,617,885,680.25
5. Step 5: Solve for x
   x = 7,617,885,680.25/39,813
6. Step 6: Final answer
   x = 191,341.66