Finding the Third Proportional to 39,630 and 58,790

Step by Step Solution

1. Step 1: Write the proportion equation
   39,630 : 58,790 = 58,790 : x
2. Step 2: Convert to fraction form
   39,630/58,790 = 58,790/x
3. Step 3: Cross multiply
   39,630x = 58,790 × 58,790
4. Step 4: Simplify right side
   39,630x = 3,456,264,100
5. Step 5: Solve for x
   x = 3,456,264,100/39,630
6. Step 6: Final answer
   x = 87,213.33