Finding the Third Proportional to 79,154 and 116,139

Step by Step Solution

1. Step 1: Write the proportion equation
   79,154 : 116,139 = 116,139 : x
2. Step 2: Convert to fraction form
   79,154/116,139 = 116,139/x
3. Step 3: Cross multiply
   79,154x = 116,139 × 116,139
4. Step 4: Simplify right side
   79,154x = 13,488,267,321
5. Step 5: Solve for x
   x = 13,488,267,321/79,154
6. Step 6: Final answer
   x = 170,405.38