Finding the Third Proportional to 79,980 and 185,158

Step by Step Solution

1. Step 1: Write the proportion equation
   79,980 : 185,158 = 185,158 : x
2. Step 2: Convert to fraction form
   79,980/185,158 = 185,158/x
3. Step 3: Cross multiply
   79,980x = 185,158 × 185,158
4. Step 4: Simplify right side
   79,980x = 34,283,484,964
5. Step 5: Solve for x
   x = 34,283,484,964/79,980
6. Step 6: Final answer
   x = 428,650.72