Finding the Third Proportional to 89,502 and 137,673

Step by Step Solution

1. Step 1: Write the proportion equation
   89,502 : 137,673 = 137,673 : x
2. Step 2: Convert to fraction form
   89,502/137,673 = 137,673/x
3. Step 3: Cross multiply
   89,502x = 137,673 × 137,673
4. Step 4: Simplify right side
   89,502x = 18,953,854,929
5. Step 5: Solve for x
   x = 18,953,854,929/89,502
6. Step 6: Final answer
   x = 211,770.18