Finding the Third Proportional to 90,632 and 137,868

Step by Step Solution

1. Step 1: Write the proportion equation
   90,632 : 137,868 = 137,868 : x
2. Step 2: Convert to fraction form
   90,632/137,868 = 137,868/x
3. Step 3: Cross multiply
   90,632x = 137,868 × 137,868
4. Step 4: Simplify right side
   90,632x = 19,007,585,424
5. Step 5: Solve for x
   x = 19,007,585,424/90,632
6. Step 6: Final answer
   x = 209,722.67