Finding the Third Proportional to 86,904 and 116,397

Step by Step Solution

1. Step 1: Write the proportion equation
   86,904 : 116,397 = 116,397 : x
2. Step 2: Convert to fraction form
   86,904/116,397 = 116,397/x
3. Step 3: Cross multiply
   86,904x = 116,397 × 116,397
4. Step 4: Simplify right side
   86,904x = 13,548,261,609
5. Step 5: Solve for x
   x = 13,548,261,609/86,904
6. Step 6: Final answer
   x = 155,899.17