Finding the Third Proportional to 38,910 and 55,062

Step by Step Solution

1. Step 1: Write the proportion equation
   38,910 : 55,062 = 55,062 : x
2. Step 2: Convert to fraction form
   38,910/55,062 = 55,062/x
3. Step 3: Cross multiply
   38,910x = 55,062 × 55,062
4. Step 4: Simplify right side
   38,910x = 3,031,823,844
5. Step 5: Solve for x
   x = 3,031,823,844/38,910
6. Step 6: Final answer
   x = 77,918.89