Finding the Third Proportional to 39,040 and 58,454

Step by Step Solution

1. Step 1: Write the proportion equation
   39,040 : 58,454 = 58,454 : x
2. Step 2: Convert to fraction form
   39,040/58,454 = 58,454/x
3. Step 3: Cross multiply
   39,040x = 58,454 × 58,454
4. Step 4: Simplify right side
   39,040x = 3,416,870,116
5. Step 5: Solve for x
   x = 3,416,870,116/39,040
6. Step 6: Final answer
   x = 87,522.29