Finding the Third Proportional to 40,899.50 and 87,630.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,899.50 : 87,630.50 = 87,630.50 : x
2. Step 2: Convert to fraction form
   40,899.50/87,630.50 = 87,630.50/x
3. Step 3: Cross multiply
   40,899.50x = 87,630.50 × 87,630.50
4. Step 4: Simplify right side
   40,899.50x = 7,679,104,530.25
5. Step 5: Solve for x
   x = 7,679,104,530.25/40,899.50
6. Step 6: Final answer
   x = 187,755.46