Finding the Third Proportional to 39,499.50 and 87,004.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,499.50 : 87,004.50 = 87,004.50 : x
2. Step 2: Convert to fraction form
   39,499.50/87,004.50 = 87,004.50/x
3. Step 3: Cross multiply
   39,499.50x = 87,004.50 × 87,004.50
4. Step 4: Simplify right side
   39,499.50x = 7,569,783,020.25
5. Step 5: Solve for x
   x = 7,569,783,020.25/39,499.50
6. Step 6: Final answer
   x = 191,642.50