Finding the Third Proportional to 40,860 and 86,160

Step by Step Solution

1. Step 1: Write the proportion equation
   40,860 : 86,160 = 86,160 : x
2. Step 2: Convert to fraction form
   40,860/86,160 = 86,160/x
3. Step 3: Cross multiply
   40,860x = 86,160 × 86,160
4. Step 4: Simplify right side
   40,860x = 7,423,545,600
5. Step 5: Solve for x
   x = 7,423,545,600/40,860
6. Step 6: Final answer
   x = 181,682.47