Finding the Third Proportional to 71,821.69 and 113,671.69

Step by Step Solution

1. Step 1: Write the proportion equation
   71,821.69 : 113,671.69 = 113,671.69 : x
2. Step 2: Convert to fraction form
   71,821.69/113,671.69 = 113,671.69/x
3. Step 3: Cross multiply
   71,821.69x = 113,671.69 × 113,671.69
4. Step 4: Simplify right side
   71,821.69x = 12,921,252,539.10
5. Step 5: Solve for x
   x = 12,921,252,539.10/71,821.69
6. Step 6: Final answer
   x = 179,907.39