Finding the Third Proportional to 100,859.50 and 137,045

Step by Step Solution

1. Step 1: Write the proportion equation
   100,859.50 : 137,045 = 137,045 : x
2. Step 2: Convert to fraction form
   100,859.50/137,045 = 137,045/x
3. Step 3: Cross multiply
   100,859.50x = 137,045 × 137,045
4. Step 4: Simplify right side
   100,859.50x = 18,781,332,025
5. Step 5: Solve for x
   x = 18,781,332,025/100,859.50
6. Step 6: Final answer
   x = 186,212.82