Finding the Third Proportional to 18,126 and 37,890

Step by Step Solution

1. Step 1: Write the proportion equation
   18,126 : 37,890 = 37,890 : x
2. Step 2: Convert to fraction form
   18,126/37,890 = 37,890/x
3. Step 3: Cross multiply
   18,126x = 37,890 × 37,890
4. Step 4: Simplify right side
   18,126x = 1,435,652,100
5. Step 5: Solve for x
   x = 1,435,652,100/18,126
6. Step 6: Final answer
   x = 79,204.02