Finding the Third Proportional to 37,399.50 and 86,490

Step by Step Solution

1. Step 1: Write the proportion equation
   37,399.50 : 86,490 = 86,490 : x
2. Step 2: Convert to fraction form
   37,399.50/86,490 = 86,490/x
3. Step 3: Cross multiply
   37,399.50x = 86,490 × 86,490
4. Step 4: Simplify right side
   37,399.50x = 7,480,520,100
5. Step 5: Solve for x
   x = 7,480,520,100/37,399.50
6. Step 6: Final answer
   x = 200,016.58