Finding the Third Proportional to 20,136 and 30,156

Step by Step Solution

1. Step 1: Write the proportion equation
   20,136 : 30,156 = 30,156 : x
2. Step 2: Convert to fraction form
   20,136/30,156 = 30,156/x
3. Step 3: Cross multiply
   20,136x = 30,156 × 30,156
4. Step 4: Simplify right side
   20,136x = 909,384,336
5. Step 5: Solve for x
   x = 909,384,336/20,136
6. Step 6: Final answer
   x = 45,162.11