Finding the Third Proportional to 39,090 and 60,490

Step by Step Solution

1. Step 1: Write the proportion equation
   39,090 : 60,490 = 60,490 : x
2. Step 2: Convert to fraction form
   39,090/60,490 = 60,490/x
3. Step 3: Cross multiply
   39,090x = 60,490 × 60,490
4. Step 4: Simplify right side
   39,090x = 3,659,040,100
5. Step 5: Solve for x
   x = 3,659,040,100/39,090
6. Step 6: Final answer
   x = 93,605.53