Finding the Third Proportional to 39,610 and 58,478

Step by Step Solution

1. Step 1: Write the proportion equation
   39,610 : 58,478 = 58,478 : x
2. Step 2: Convert to fraction form
   39,610/58,478 = 58,478/x
3. Step 3: Cross multiply
   39,610x = 58,478 × 58,478
4. Step 4: Simplify right side
   39,610x = 3,419,676,484
5. Step 5: Solve for x
   x = 3,419,676,484/39,610
6. Step 6: Final answer
   x = 86,333.67