Finding the Third Proportional to 42,265.13 and 89,245.69

Step by Step Solution

1. Step 1: Write the proportion equation
   42,265.13 : 89,245.69 = 89,245.69 : x
2. Step 2: Convert to fraction form
   42,265.13/89,245.69 = 89,245.69/x
3. Step 3: Cross multiply
   42,265.13x = 89,245.69 × 89,245.69
4. Step 4: Simplify right side
   42,265.13x = 7,964,792,737.35
5. Step 5: Solve for x
   x = 7,964,792,737.35/42,265.13
6. Step 6: Final answer
   x = 188,448.34