Finding the Third Proportional to 39,138.19 and 58,573.13

Step by Step Solution

1. Step 1: Write the proportion equation
   39,138.19 : 58,573.13 = 58,573.13 : x
2. Step 2: Convert to fraction form
   39,138.19/58,573.13 = 58,573.13/x
3. Step 3: Cross multiply
   39,138.19x = 58,573.13 × 58,573.13
4. Step 4: Simplify right side
   39,138.19x = 3,430,810,972.27
5. Step 5: Solve for x
   x = 3,430,810,972.27/39,138.19
6. Step 6: Final answer
   x = 87,658.91