Finding the Third Proportional to 42,450 and 62,109

Step by Step Solution

1. Step 1: Write the proportion equation
   42,450 : 62,109 = 62,109 : x
2. Step 2: Convert to fraction form
   42,450/62,109 = 62,109/x
3. Step 3: Cross multiply
   42,450x = 62,109 × 62,109
4. Step 4: Simplify right side
   42,450x = 3,857,527,881
5. Step 5: Solve for x
   x = 3,857,527,881/42,450
6. Step 6: Final answer
   x = 90,872.27