Finding the Third Proportional to 39,615.75 and 87,007.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,615.75 : 87,007.50 = 87,007.50 : x
2. Step 2: Convert to fraction form
   39,615.75/87,007.50 = 87,007.50/x
3. Step 3: Cross multiply
   39,615.75x = 87,007.50 × 87,007.50
4. Step 4: Simplify right side
   39,615.75x = 7,570,305,056.25
5. Step 5: Solve for x
   x = 7,570,305,056.25/39,615.75
6. Step 6: Final answer
   x = 191,093.32