Finding the Third Proportional to 40,222.50 and 86,610

Step by Step Solution

1. Step 1: Write the proportion equation
   40,222.50 : 86,610 = 86,610 : x
2. Step 2: Convert to fraction form
   40,222.50/86,610 = 86,610/x
3. Step 3: Cross multiply
   40,222.50x = 86,610 × 86,610
4. Step 4: Simplify right side
   40,222.50x = 7,501,292,100
5. Step 5: Solve for x
   x = 7,501,292,100/40,222.50
6. Step 6: Final answer
   x = 186,494.92