Finding the Third Proportional to 42,905 and 89,914

Step by Step Solution

1. Step 1: Write the proportion equation
   42,905 : 89,914 = 89,914 : x
2. Step 2: Convert to fraction form
   42,905/89,914 = 89,914/x
3. Step 3: Cross multiply
   42,905x = 89,914 × 89,914
4. Step 4: Simplify right side
   42,905x = 8,084,527,396
5. Step 5: Solve for x
   x = 8,084,527,396/42,905
6. Step 6: Final answer
   x = 188,428.56