Finding the Third Proportional to 35,090 and 54,540

Step by Step Solution

1. Step 1: Write the proportion equation
   35,090 : 54,540 = 54,540 : x
2. Step 2: Convert to fraction form
   35,090/54,540 = 54,540/x
3. Step 3: Cross multiply
   35,090x = 54,540 × 54,540
4. Step 4: Simplify right side
   35,090x = 2,974,611,600
5. Step 5: Solve for x
   x = 2,974,611,600/35,090
6. Step 6: Final answer
   x = 84,770.92