Finding the Third Proportional to 86,654 and 115,906

Step by Step Solution

1. Step 1: Write the proportion equation
   86,654 : 115,906 = 115,906 : x
2. Step 2: Convert to fraction form
   86,654/115,906 = 115,906/x
3. Step 3: Cross multiply
   86,654x = 115,906 × 115,906
4. Step 4: Simplify right side
   86,654x = 13,434,200,836
5. Step 5: Solve for x
   x = 13,434,200,836/86,654
6. Step 6: Final answer
   x = 155,032.67