Finding the Third Proportional to 39,138.19 and 60,643.69

Step by Step Solution

1. Step 1: Write the proportion equation
   39,138.19 : 60,643.69 = 60,643.69 : x
2. Step 2: Convert to fraction form
   39,138.19/60,643.69 = 60,643.69/x
3. Step 3: Cross multiply
   39,138.19x = 60,643.69 × 60,643.69
4. Step 4: Simplify right side
   39,138.19x = 3,677,656,833.60
5. Step 5: Solve for x
   x = 3,677,656,833.60/39,138.19
6. Step 6: Final answer
   x = 93,965.95