Finding the Third Proportional to 37,890 and 55,854

Step by Step Solution

1. Step 1: Write the proportion equation
   37,890 : 55,854 = 55,854 : x
2. Step 2: Convert to fraction form
   37,890/55,854 = 55,854/x
3. Step 3: Cross multiply
   37,890x = 55,854 × 55,854
4. Step 4: Simplify right side
   37,890x = 3,119,669,316
5. Step 5: Solve for x
   x = 3,119,669,316/37,890
6. Step 6: Final answer
   x = 82,334.90