Finding the Third Proportional to 38,998 and 55,581

Step by Step Solution

1. Step 1: Write the proportion equation
   38,998 : 55,581 = 55,581 : x
2. Step 2: Convert to fraction form
   38,998/55,581 = 55,581/x
3. Step 3: Cross multiply
   38,998x = 55,581 × 55,581
4. Step 4: Simplify right side
   38,998x = 3,089,247,561
5. Step 5: Solve for x
   x = 3,089,247,561/38,998
6. Step 6: Final answer
   x = 79,215.54