Finding the Third Proportional to 39,412.69 and 56,658.66

Step by Step Solution

1. Step 1: Write the proportion equation
   39,412.69 : 56,658.66 = 56,658.66 : x
2. Step 2: Convert to fraction form
   39,412.69/56,658.66 = 56,658.66/x
3. Step 3: Cross multiply
   39,412.69x = 56,658.66 × 56,658.66
4. Step 4: Simplify right side
   39,412.69x = 3,210,203,328.06
5. Step 5: Solve for x
   x = 3,210,203,328.06/39,412.69
6. Step 6: Final answer
   x = 81,451.01