Finding the Third Proportional to 79,980 and 185,156

Step by Step Solution

1. Step 1: Write the proportion equation
   79,980 : 185,156 = 185,156 : x
2. Step 2: Convert to fraction form
   79,980/185,156 = 185,156/x
3. Step 3: Cross multiply
   79,980x = 185,156 × 185,156
4. Step 4: Simplify right side
   79,980x = 34,282,744,336
5. Step 5: Solve for x
   x = 34,282,744,336/79,980
6. Step 6: Final answer
   x = 428,641.46