Finding the Third Proportional to 30,090 and 60,912

Step by Step Solution

1. Step 1: Write the proportion equation
   30,090 : 60,912 = 60,912 : x
2. Step 2: Convert to fraction form
   30,090/60,912 = 60,912/x
3. Step 3: Cross multiply
   30,090x = 60,912 × 60,912
4. Step 4: Simplify right side
   30,090x = 3,710,271,744
5. Step 5: Solve for x
   x = 3,710,271,744/30,090
6. Step 6: Final answer
   x = 123,305.81