Finding the Third Proportional to 35,209.69 and 76,390.59

Step by Step Solution

1. Step 1: Write the proportion equation
   35,209.69 : 76,390.59 = 76,390.59 : x
2. Step 2: Convert to fraction form
   35,209.69/76,390.59 = 76,390.59/x
3. Step 3: Cross multiply
   35,209.69x = 76,390.59 × 76,390.59
4. Step 4: Simplify right side
   35,209.69x = 5,835,522,813.48
5. Step 5: Solve for x
   x = 5,835,522,813.48/35,209.69
6. Step 6: Final answer
   x = 165,736.29