Finding the Third Proportional to 60,090 and 139,104

Step by Step Solution

1. Step 1: Write the proportion equation
   60,090 : 139,104 = 139,104 : x
2. Step 2: Convert to fraction form
   60,090/139,104 = 139,104/x
3. Step 3: Cross multiply
   60,090x = 139,104 × 139,104
4. Step 4: Simplify right side
   60,090x = 19,349,922,816
5. Step 5: Solve for x
   x = 19,349,922,816/60,090
6. Step 6: Final answer
   x = 322,015.69