Finding the Third Proportional to 37,921 and 55,909

Step by Step Solution

1. Step 1: Write the proportion equation
   37,921 : 55,909 = 55,909 : x
2. Step 2: Convert to fraction form
   37,921/55,909 = 55,909/x
3. Step 3: Cross multiply
   37,921x = 55,909 × 55,909
4. Step 4: Simplify right side
   37,921x = 3,125,816,281
5. Step 5: Solve for x
   x = 3,125,816,281/37,921
6. Step 6: Final answer
   x = 82,429.69