Finding the Third Proportional to 72,116 and 154,196

Step by Step Solution

1. Step 1: Write the proportion equation
   72,116 : 154,196 = 154,196 : x
2. Step 2: Convert to fraction form
   72,116/154,196 = 154,196/x
3. Step 3: Cross multiply
   72,116x = 154,196 × 154,196
4. Step 4: Simplify right side
   72,116x = 23,776,406,416
5. Step 5: Solve for x
   x = 23,776,406,416/72,116
6. Step 6: Final answer
   x = 329,696.69