Finding the Third Proportional to 39,017.81 and 58,419.84

Step by Step Solution

1. Step 1: Write the proportion equation
   39,017.81 : 58,419.84 = 58,419.84 : x
2. Step 2: Convert to fraction form
   39,017.81/58,419.84 = 58,419.84/x
3. Step 3: Cross multiply
   39,017.81x = 58,419.84 × 58,419.84
4. Step 4: Simplify right side
   39,017.81x = 3,412,878,143.77
5. Step 5: Solve for x
   x = 3,412,878,143.77/39,017.81
6. Step 6: Final answer
   x = 87,469.75