Finding the Third Proportional to 40,900 and 86,515.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,900 : 86,515.50 = 86,515.50 : x
2. Step 2: Convert to fraction form
   40,900/86,515.50 = 86,515.50/x
3. Step 3: Cross multiply
   40,900x = 86,515.50 × 86,515.50
4. Step 4: Simplify right side
   40,900x = 7,484,931,740.25
5. Step 5: Solve for x
   x = 7,484,931,740.25/40,900
6. Step 6: Final answer
   x = 183,005.67